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

SOLUTION: A

PROBLEM: Joe stacked the paperback books above the blue binders, so the _ were on the top. (A) books (B) binders

SOLUTION: A

PROBLEM: Phil went to the neighborhood store for an ordinary battery and an unusual plug for his electronic device, and he special ordered the _ because it is proprietary. (A) plug (B) battery

SOLUTION:
A