Patricia got bit by a snake while camping and Mary got bit by a mosquito. 
OPTIONS:
- Patricia was itchy from their injury.
- Mary was itchy from their injury.
Mary was itchy from their injury.

Felicia showed Jennifer a trick in how to soften a paintbrush.  
OPTIONS:
- Felicia was smart.
- Jennifer was smart.
Felicia was smart.

Derrick crawled into bed and fell asleep 3 hours before Craig because 
OPTIONS:
- Derrick was not tired.
- Craig was not tired.
Craig was not tired.