[Q]: How does the sentence end?

Rebecca kept a healthy lifestyle while Jessica was often sick, because 
OPTIONS:
- Rebecca liked to exercise regularly.
- Jessica liked to exercise regularly.

[A]: Rebecca liked to exercise regularly.
QUES: Continue writing.

The trumpet had to be blown into the mic to be as audible as the drum because the 

OPTIONS:
- drum is louder.
- trumpet is louder.
+++++++++
ANS: drum is louder.
Problem: How does the sentence end?

The sound of the tickling clock was audible in the room because the 
OPTIONS:
- room is quiet.
- clock is quiet.
Answer: room is quiet.
sentence: Hunter had learned to preserve seeds for use and Kevin wanted to learn so,  OPTIONS:
- Hunter instructed them on how to do it.
- Kevin instructed them on how to do it.
complete: Hunter instructed them on how to do it.
Carrie asked a lot of demands from Rachel since 
OPTIONS:
- Carrie was pregnant and couldn't move.
- Rachel was pregnant and couldn't move.
Carrie was pregnant and couldn't move.
Problem: Continue the following story.

The professor preferred to demonstrate the problem on a chalkboard rather than a projector, because the 
OPTIONS:
- projector was less effective.
- chalkboard was less effective.
Here's how I want to continue it:
projector was less effective.