[Q]: How does the sentence end?

There are more hairs on Ryan's back compared to Kevin because 
OPTIONS:
- Ryan doesn't shave there.
- Kevin doesn't shave there.

[A]: Ryan doesn't shave there.
QUES: Continue writing.

Lawrence was accused by Matthew of polluting the environment and harming everyone because 

OPTIONS:
- Lawrence is an nature activist.
- Matthew is an nature activist.
+++++++++
ANS: Matthew is an nature activist.
Problem: How does the sentence end?

Donald asked Randy to make some delicious chocolate brownies because 
OPTIONS:
- Donald was not a good baker.
- Randy was not a good baker.
Answer: Donald was not a good baker.
sentence: Dennis loved space stories and Kyle loved love stories so at the bookstore  OPTIONS:
- Dennis picked up a sci-fi book to read.
- Kyle picked up a sci-fi book to read.
complete: Dennis picked up a sci-fi book to read.
Susan had much worse problems than Joe had situations arise, because the 
OPTIONS:
- problems were more intense.
- situations were more intense.
problems were more intense.
Problem: Continue the following story.

Isn't it wiser to buy a reusable filter than a disposable filter? I think the 
OPTIONS:
- reusable filter is cheaper in the long run.
- disposable filter is cheaper in the long run.
Here's how I want to continue it:
reusable filter is cheaper in the long run.