This is a sentence fragment because it is lacking a verb. Only "their weather forecasts are wrong" adds a verb in the right tense.

Let's break down the originaly sentence: we have "Those who enjoy that author's writing," a subject; "being those who tend not to read traditional horror," an interrupting phrase providing further information about the subject; and "preferring instead the comforts of peaceful stories," a participial phrase again describing the subject. This sentence doesn't contain an actual verb; it is one long description of "those." To correct the sentence's error, we need to introduce a verb, either by adding in a form of "to be" before one of the participles to make it a verb, or changing one of the participles to a different verb form. The only answer choice that corrects the sentence replaces the participle "being those who tend not to read" with the verb "tend not to read." The complete and corrected sentence thus reads, "Those who enjoy that author's writing are those who tend not to read traditional horror, preferring instead the comforts of peaceful stories."

The non-underlined, and therefore correct, verb in the sentence is "was," which is in the past tense. Therefore, the verb in the underlined portion of the sentence must also be in the past tense. The only answer choice that is both a correct grammatical form and in the past tense is "than it had appeared."

The verb construction "had seeing" is an incorrect form, with the participle "seeing" needing some form of the word "be" to be made correct. The form needs to be changed to something more appropriate. "Had seen," featuring the past tense form of "see," is the correct answer choice.

The underlined portion of the sentence contains a strange use of the verb "obsessing," which should not be used with the past tense "became." The correct answer choice must change "obsessing" to an appropriate past tense form; therefore, the correct answer is "The entire town became obsessed with the case."

"Having angering" is a universally incorrect construction, and needs to be made appropriate grammatically. The -ing verb form following a comma that ends a complete thought is a participial modifier, which modifies the result of that clause. Here the result of "issues began cropping up" is that consumers became angry (at those issues). Using "angering" as the modifier, then, makes complete sense: the issues angered the consumers, so "angering consumers" properly uses a participial modifier to describe the effect of the action that takes place before the comma. "angering consumers" is correct.

The use of the verb "ignoring" is incorrect in this sentence, as it is a present participle and the sentence needs a past tense active verb; therefore, the correct answer is "Most people ignored."

The use of the past participle "keeping" is inappropriate as it needs either an infinitive or a version of "be" to be used as the verb in a sentence. "Keeping" needs to be changed to an appropriate verb form without changing the meaning of the sentence. The only answer choice that does both is "The man keeps up with."

The use of the verb form "questioning," a gerund, makes the sentence confusing. The word should be changed to a form that properly reflects the "scholars" are questioning "the power of monarchy." The answer choice that best does this is "is questioned by modern scholars."

The use of the participle form "keeping" is incorrect without a  version of the verb "to be," and needs to either be changed to a non-participle or have the version of "to be" added. This is the only issue with the sentence as it is written. Therefore, the correct answer choice is "keeps an extra pair of glasses."