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".

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
B

Joel spends a lot more time sitting down than Donald because _ works in an office. (A) Joel (B) Donald
A

The protesters made their signs with markers, not crayons, at the rally. The _ are easily seen. (A) markers (B) crayons

A