In Trial 18 of a Sentence-Verification Task, Participants See the Sentence

In Trial 18 of a sentence-verification task, participants see the sentence, "A robin is a bird." In Trial 42 they see, "A penguin is a bird." According to prototype theory, we should expect

A) faster responses to "robin" because participants more readily see the resemblance between "robin" and the bird prototype.
B) faster responses to "penguin" because penguins are a unique bird, and thus easily identified.
C) faster responses to "robin" because of response priming.
D) faster responses to "penguin" because penguins are higher in typicality.