Problem: How does the sentence end?

Erin jumped and clapped at the dance performed by Betty.  
OPTIONS:
- Erin was quite the performer.
- Betty was quite the performer.
Answer: Betty was quite the performer.

Problem: How does the sentence end?

The meeting with the boss resulted in Logan getting fired but not Donald because 
OPTIONS:
- Logan was a slacker.
- Donald was a slacker.
Answer: Logan was a slacker.

Problem: How does the sentence end?

Aaron asked to borrow money from Steven because 
OPTIONS:
- Aaron  remembered to bring their wallet with them.
- Steven  remembered to bring their wallet with them.
Answer: Steven  remembered to bring their wallet with them.

Problem: How does the sentence end?

The budget fared much better for the desks than it did for the chairs, because the 
OPTIONS:
- chairs were essential.
- desks were essential.
Answer:
desks were essential.