Problem: How does the sentence end?

Mary has taken a karate class, but Rachel never has, so 
OPTIONS:
- Mary is the one who is worse at defending himself.
- Rachel is the one who is worse at defending himself.
Answer: Rachel is the one who is worse at defending himself.

Problem: How does the sentence end?

Justin doesn't have as much foresight as Brett does because 
OPTIONS:
- Justin does not possess a sixth sense.
- Brett does not possess a sixth sense.
Answer: Justin does not possess a sixth sense.

Problem: How does the sentence end?

Nick quite often likes to drive too fast but Robert never does because 
OPTIONS:
- Nick is sensible.
- Robert is sensible.
Answer: Robert is sensible.

Problem: How does the sentence end?

Donald told Michael how we was going to start eating healthy by eating rice.  
OPTIONS:
- Donald was unconvinced.
- Michael was unconvinced.
Answer:
Michael was unconvinced.