Problem: How does the sentence end?

The combat vets nightmares were much worse than the dreams of the student, because the 
OPTIONS:
- nightmares were imaginary.
- dreams were imaginary.
Answer: dreams were imaginary.

Problem: How does the sentence end?

Patricia lived in a cold home in winter but Felicia did not because 
OPTIONS:
- Patricia had poor central heating.
- Felicia had poor central heating.
Answer: Patricia had poor central heating.

Problem: How does the sentence end?

Dave chose to buy chuck steak rather than t-bone steak, because the 
OPTIONS:
- chuck steak was cheaper.
- t-bone steak was cheaper.
Answer: chuck steak was cheaper.

Problem: How does the sentence end?

Christopher saw that Derrick was nervous about the presentation. 
OPTIONS:
- Christopher tried to calm down and take deep breaths.
- Derrick tried to calm down and take deep breaths.
Answer:
Derrick tried to calm down and take deep breaths.