[Q]: How does the sentence end?

In order to help a friend with PTSD, she left a group therapy flyer on the table instead of a self-help book because the 
OPTIONS:
- book would be useless.
- flyer would be useless.

[A]: book would be useless.
QUES: Continue writing.

I used to have a desktop, but I hated it compared to my laptop, because the 

OPTIONS:
- desktop is portable.
- laptop is portable.
+++++++++
ANS: laptop is portable.
Problem: How does the sentence end?

Laura beat Angela in the arm wrestling contest because 
OPTIONS:
- Laura had much less arm strength.
- Angela had much less arm strength.
Answer: Angela had much less arm strength.
sentence: The push-up exercise is easier to do than the pull-up exercise because the  OPTIONS:
- push-up needs extra strength.
- pull-up needs extra strength.
complete: pull-up needs extra strength.
James could not cover the whole picture with his hand because the 
OPTIONS:
- hand is small.
- picture is small.
hand is small.
Problem: Continue the following story.

I used several sprays to get rid of the bedbugs but they didn't work, because the 
OPTIONS:
- sprays were powerful.
- bedbugs were powerful.
Here's how I want to continue it:
bedbugs were powerful.