In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

Ex Input:
Kylie had her mind set on seeing Venice by boat, but she was in a hurry so she saw it by trolley since the _ was fast. (A) trolley (B) boat

Ex Output:
A


Ex Input:
Maria got an A in English class, while Angela got an F because _ always studied. (A) Maria (B) Angela

Ex Output:
A


Ex Input:
The baby took formula but had to switch to breastmilk because the _ was more satisfying. (A) formula (B) breastmilk

Ex Output:

B