KAPLAN OFFICIAL EXPLANATIONThe correct answer to this question is not supported in the passage, meaning it either contradicts the passage or falls outside the scope. The four wrong answers are supported. The first two sentences of the passage describe the origin of the theory of atoms prior to their scientific discovery, which allows you to eliminate choice (A); furthermore, the author mentions that “philosophers across the world developed similar theories,” which supports—and thus eliminates— choice (E). However, the author describes Democritus as having “popularized” the theory of atoms, which is not the same as first discovering the atom; based on this, choice (D) is correct. Choices (B) and (C) both relate to the discussion of subatomic particles, but because elementary particles are smaller than subatomic particles (an example of the latter being the hadron), you may eliminate (B). The conclusion of the passage rules out choice (C) in the description of the importance of experiments using the Large Hadron Collider.