Problem: How does the sentence end?

Katrina found work to be more stressful than Monica, because 
Answer: Katrina had a disorganized office.

Problem: How does the sentence end?

James preferred sitting down in his room with his cat rather than taking a walk in the neighborhood. The 
Answer: neighborhood is rowdy.

Problem: How does the sentence end?

Carving a pumpkin every Halloween is a must for Megan but not for Katrina because 
Answer: Megan loves to follow tradition.

Problem: How does the sentence end?

So 
Answer:
Benjamin likes being outdoor because Benjamin likes the fresh air and the open space and Derrick don't.