Lamarck theorized that animals evolved into new forms based on need or utility, and thus he is the correct answer for this question.

Darwin was the father of the theory of evolution by natural selection (along with Alfred Russell Wallace), Watson and Crick discovered the structure of DNA (along with Rosalind Franklin), Leeuwenhoek pioneered microscopy, and Jonas Salk created the polio vaccine, so none of those are correct.

The principal of use and disuse suggests that organs you use get bigger while those you don't use get smaller or even disappear entirely. Inheritance of acquired characteristics sugegsts that proficiencies and traits can be passed down to succeeding generations. Lamarckian evolution is largely based on these two ideals.

Theory of genetic chance is not a real foundation of Lamarckian evolution.

The theory of inheritance of acquired characteristics was one of the earliest theories of evolution. Lamarck believed that traits were passed down to offspring when the parent showed increased use of those traits, and that traits that were not used by the parent were not inherited. The most common example of this "use and disuse" idea was a giraffe that, during its lifetime, often stretched its neck to reach leaves, and thus had a greater number of offspring with long necks.

This theory was shown to be incorrect in favor of Darwin's theory of evolution by natural selection. Use or disuse during an organism's lifespan is not the driving force of evolution.

Lamarck hypothesized, amongst other things, that organisms could pass down traits acquired during life from generation to generation. Under Lamarck's theory of use and disuse, a man who worked in a factory and developed strong arms would pass the strong arms trait to his offspring. This hypothesis has largely been rejected by modern genetics.

Gregor Mendel is the founder of modern genetics, developing our modern understanding of allelic inheritance. Charles Darwin developed important theories about evolution and natural selection. Carolus Linnaeus is best remembered for establishing binomial nomenclature, the system used today to officially name organisms.

Jean-Baptiste Lamarck was an evolutionary theorist who was rejected by Charles Darwin. In his theory, Lamarck supported the idea that individuals could pass down acquired characteristics to their offspring, and that they lost un-needed traits and gained useful traits. The most recent theory of evolution, like Charles Darwin, rejects these claim.

While Lamarck had many revolutionary ideas on evolution, his most correct assumption was the importance of environmental changes on evolutionary adaptations. His theories on the inheritance of acquired traits and essentialsm do not fit into our current knowledge of evolution, DNA, and inheritance.