Problem: How does the sentence end?

Christine but not Rachel had nightmares because 
OPTIONS:
- Christine remembered the creature they saw at the zoo.
- Rachel remembered the creature they saw at the zoo.
Answer: Christine remembered the creature they saw at the zoo.

Problem: How does the sentence end?

Fred wanted to revamp his annual charity events theme to a new design. The 
OPTIONS:
- theme was old.
- design was old.
Answer: theme was old.

Problem: How does the sentence end?

We could treat the cancer at the hospital, but we opted for the clinic, as getting to and from the 
OPTIONS:
- hospital was inconvenient.
- clinic was inconvenient.
Answer: hospital was inconvenient.

Problem: How does the sentence end?

Monica needed to borrow a screwdriver from Lindsey because 
OPTIONS:
- Monica did not have a good tool box.
- Lindsey did not have a good tool box.
Answer:
Monica did not have a good tool box.