Problem: How does the sentence end?

In an effort to control kennel cough, Emily sent Maria to get the medication but 
OPTIONS:
- Emily was busy examining the animals.
- Maria was busy examining the animals.
Answer: Maria was busy examining the animals.
sentence: The line cook added pumpkin seeds and tomatoes to the salad before serving it; the  OPTIONS:
- tomatoes were crunchy..
- seeds were crunchy..
complete: seeds were crunchy..
Plastic products are consumed by Laura, but Rebecca refuses to use them because 
OPTIONS:
- Laura neglects nature.
- Rebecca neglects nature.
Laura neglects nature.
Input: Continue writing.

Robert could move very fast but Jeffrey could not as 
OPTIONS:
- Robert was really very fit.
- Jeffrey was really very fit.

Continued: Robert was really very fit.
Story needs to be completed:
The hacker's trove of computers would not accept the various commands because the 
OPTIONS:
- commands were ethical.
- computers were ethical.

My choice:
computers were ethical.
Problem: How does the sentence end?

Sarah taught Mary's speech class; when she passed her final exam, 
OPTIONS:
- Sarah celebrated with ice cream.
- Mary celebrated with ice cream.
Answer:
Mary celebrated with ice cream.