Categorization Is Plainly Influenced by Resemblance,but It Is Also Influenced

Categorization is plainly influenced by resemblance,but it is also influenced by factors other than resemblance.Which of the following is evidence for the importance of these other factors?

A) Many categories have a hierarchical structure.
B) Resemblance plays a key role in the use of prototypes but plays no role in the well-documented use of exemplars.
C) Resemblance is typically determined by relatively superficial perceptual features,but sometimes categorization depends on deeper essential properties of the category.
D) Learning about new categories often happens automatically,even when the learner does not notice that it is happening.