Analogies test the ability to identify the relationship between a given pair of words and then find another pair that shares the same relationship. The relationship between "Top" and "Bottom" is that they are direct antonyms, meaning they are opposite in meaning. "Top" signifies the highest point, while "Bottom" signifies the lowest.
Following this antonymous relationship, "Knowledge" and "Ignorance" are also direct opposites. "Knowledge" refers to facts, information, and skills acquired through experience or education, whereas "Ignorance" denotes a lack of knowledge or information. Therefore, this pair perfectly mirrors the relationship of the original words. Options A (School: College) shows a sequential or related institutional relationship, and C (Patient: Hospital) shows a person-to-place relationship, neither of which are antonyms.