Problem: How does the sentence end?

Emily wanted to breed the dogs while Erin wanted them neutered. 
OPTIONS:
- Emily thought newborn puppies were cute but not worth the hard work.
- Erin thought newborn puppies were cute but not worth the hard work.
Answer: Erin thought newborn puppies were cute but not worth the hard work.
sentence: Benjamin drank Dennis's juice when they weren't looking last night so  OPTIONS:
- Benjamin was looking for the bottle.
- Dennis was looking for the bottle.
complete: Dennis was looking for the bottle.
Although Eric would study for the test more than Adam, 
OPTIONS:
- Eric got a lower grade in spite of this.
- Adam got a lower grade in spite of this.
Eric got a lower grade in spite of this.
Input: Continue writing.

Yoga was relaxing for Kyle but Kenneth found it stressful and frustrating. 
OPTIONS:
- Kyle had always been very flexible.
- Kenneth had always been very flexible.

Continued: Kyle had always been very flexible.
Story needs to be completed:
Kayla sold peppermint essential oil to Mary, because 
OPTIONS:
- Kayla is trying to establish a new health philosopy.
- Mary is trying to establish a new health philosopy.

My choice:
Mary is trying to establish a new health philosopy.
Problem: How does the sentence end?

Creative writing and English literature were easier for Elena than Katrina, as 
OPTIONS:
- Elena had a very limited vocabulary.
- Katrina had a very limited vocabulary.
Answer:
Katrina had a very limited vocabulary.