In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.
Q: Sentence1: Amy's sister took her to the beach to surf on her vacation. Sentence2: Amy hurriedly suited up in her wetsuit. Sentence3: The instructor was patient when Amy couldn't get the hang of it. Sentence4: Finally it was time for Amy to try on her own.
(A) Amy decided to go swimming. (B) Amy was surprised that she did a good job.
A:
B