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".

I bought a lamp and placed it in my room, because the _ was bright. (A) room (B) lamp
B

Sarah was constantly feeling dizzy but not Betty because _ did not have symptoms of vertigo. (A) Sarah (B) Betty
B

Victoria was a much stronger swimmer than Samantha, so _ watched her dive in the pool to save the drowning boy. (A) Victoria (B) Samantha

B