Problem: How does the sentence end?

Victoria set some goals, but Monica tried to make her fail. 
OPTIONS:
- Victoria was feeling jealous.
- Monica was feeling jealous.
Answer: Monica was feeling jealous.

Problem: How does the sentence end?

When the software malfunctioned Cynthia was able to fix it but Elena couldn't as 
OPTIONS:
- Cynthia is a computer wiz.
- Elena is a computer wiz.
Answer: Cynthia is a computer wiz.

Problem: How does the sentence end?

We decided to adopt the small dog instead of the big dog because the 
OPTIONS:
- small dog seemed harder to take care of.
- big dog seemed harder to take care of.
Answer: big dog seemed harder to take care of.

Problem: How does the sentence end?

Everyone says that Jeffrey plays basketball, a lot  better than Eric. This makes 
OPTIONS:
- Jeffrey very happy.
- Eric very happy.
Answer:
Jeffrey very happy.