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:
So _ ignored their bed because Christine is a clean person while Victoria is messy all the time. (A) Christine (B) Victoria

Ex Output:
B


Ex Input:
Rebecca showed Jennifer how to heal a fever by herself.  _ sure was knowledgeable. (A) Rebecca (B) Jennifer

Ex Output:
A


Ex Input:
Monica demonstrated to Katrina how to play YouTube videos without popup ads.  _ was grateful. (A) Monica (B) Katrina

Ex Output:

B