Problem: How does the sentence end?

So 
OPTIONS:
- Mary was amused because Mary wears a wig and Kayla doesn't and have really nice hair.
- Kayla was amused because Mary wears a wig and Kayla doesn't and have really nice hair.
Answer: Kayla was amused because Mary wears a wig and Kayla doesn't and have really nice hair.

Problem: How does the sentence end?

The tune of the songs were motivating to listen to while doing light housework, but not while doing his serious job. The 
OPTIONS:
- job was more intense.
- housework was more intense.
Answer: job was more intense.

Problem: How does the sentence end?

The computer was fixed by Katrina instead of Jennifer since 
OPTIONS:
- Katrina has a degree in information technology.
- Jennifer has a degree in information technology.
Answer: Katrina has a degree in information technology.

Problem: How does the sentence end?

The condition that my friend had was less severe than his moms disease, because the 
OPTIONS:
- condition was curable.
- disease was curable.
Answer:
condition was curable.