Problem: How does the sentence end?

Donald accidentally pierced Michael's skin with an arrow so 
OPTIONS:
- Donald was taken to the emergency room.
- Michael was taken to the emergency room.
Answer: Michael was taken to the emergency room.

Problem: How does the sentence end?

Cynthia has got a lot of moles on the back and goes see Mary for help, because 
OPTIONS:
- Cynthia is a doctor.
- Mary is a doctor.
Answer: Mary is a doctor.

Problem: How does the sentence end?

Michael put more effort into their relationship than Jason, because 
OPTIONS:
- Michael was more invested in its success.
- Jason was more invested in its success.
Answer: Michael was more invested in its success.

Problem: How does the sentence end?

Kevin was not able to buy the cloth meant for the occasion and Samuel helped him out because 
OPTIONS:
- Kevin is generous.
- Samuel is generous.
Answer:
Samuel is generous.