Problem: How does the sentence end?

Rebecca wanted to change names and Carrie didn't approve because 
Answer: Carrie thought it was a dated name.

Problem: How does the sentence end?

Carrie callously slammed Rachel's head into the headboard, since 
Answer: Rachel was much weaker than them.

Problem: How does the sentence end?

When I have a health concern I go to the doctor's office, not to an unlicensed medical website, because the 
Answer: website can be frightening.

Problem: How does the sentence end?

The American couple went through a breakup after the argument because the 
Answer:
breakup was reasonable.