The use of "ourselves" is incorrect, as it is a referential pronoun, meaning that the word must refer to an earlier use of the first person plural pronoun. The use at the end of the sentence is the first one, and should not be a referential pronoun. "To us" is the correct answer choice.

The sentence has an issue with the use of "it's" in the underlined portion. "It's" can only mean "it is" and never be the possessive, which can only be "its;" therefore, the correct answer choice is "due to its unfavorable agreements for the weaker party."

Never use "myself" as a simple subject (for "I") or object (for "me")—it should only be used in very particular circumstances. Use "myself" (and other pronouns ending in "self") only reflexively (where the subject and object are the same person, as in "I see myself") or to add emphasis ("I myself was there!").

The problem with the underlined portion is the conflation of "someone" and "themself." This confusingly places a plural, "them," into a singular form to match it with "someone." To clean up this awkward phrasing, the best choice among the answers is "people who have hated themselves."

The underlined portion of the sentence needs one change to one word. "There," indicating a location, should be changed to "their," the third person plural possessive. Thus, "on the trail up ahead of their path" is the correct answer choice.

The use of "myself" in the sentence is incorrect, as "myself" is a referential pronoun, but has nothing in the sentence to refer to earlier in the sentence; therefore, "to me" is the correct answer choice.

The use of the word "it's" is incorrect in the sentence, as "it's" is only the contraction of "it is." The possessive form is always "its," making the correct answer "due to its massive length."

The use of the pronoun "myself" in the sentence is wrong, as it is the only use of a first person pronoun, and needs a previous usage to refer to; therefore, the word needs to be changed to the simple first person pronoun, "me," which makes "The issue was first brought to me well over five years ago," the correct answer choice.

The use of the reflexive pronoun in this sentence is incorrect, as there is no previous use of the first person pronoun to which it can refer. The word "myself" needs to changed to the simple first person objective pronoun, "me." Therefore, the correct answer choice is "a great deal of anger toward me."

The use of "them" is imprecise, as it is unclear who exactly "them" is referring to in the sentence. To clear up this confusion, the use of "themselves" is the best way to indicate this usage refers to the subject of the sentence. "Themselves to watch their own weight" is the correct answer choice.