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:
Jenny found that using peroxide instead of toothpaste on her teeth gave her a better smile, because with _ her teeth were browner. (A) peroxide (B) toothpaste

Ex Output:
B


Ex Input:
The man took muscle relaxant medicine to prepare himself for the colonoscopy procedure, because the _ was invasive. (A) procedure (B) medicine

Ex Output:
A


Ex Input:
Menopause has its downsides, but you save money despite having to take medicine because you no longer have to buy menstrual products, and the _ end up being more expensive. (A) medicine (B) menstrual products

Ex Output:

B