Problem: Rocky's skin hasn't been responding to the cream, but the cleanser has helped it clear up. The 
OPTIONS:
- cream must be a proper formula.
- cleanser must be a proper formula.

My choice: cleanser must be a proper formula.


Problem: Every week, Tanya went to see Kayla who was a physical therapist because 
OPTIONS:
- Tanya helped fix back problems.
- Kayla helped fix back problems.

My choice: Kayla helped fix back problems.


Problem: Elena taught Jennifer how to train the new dog because 
OPTIONS:
- Elena was an animal trainer.
- Jennifer was an animal trainer.

My choice: Elena was an animal trainer.


Problem: The plants stopped manufacturing robots and switched to cars, as the 
OPTIONS:
- robots were lucrative to produce.
- cars were lucrative to produce.

My choice:
cars were lucrative to produce.