Problem: How does the sentence end?

The skin was darker on Barry's arms than his legs because the 
OPTIONS:
- legs were always exposed.
- arms were always exposed.
Answer: arms were always exposed.

Problem: How does the sentence end?

The woman tried to pack her blowdryer in the suitcase but the 
OPTIONS:
- suitcase was too small.
- blowdryer was too small.
Answer: suitcase was too small.

Problem: How does the sentence end?

Currently, Monica is looking to date again, while Maria is not, due to 
OPTIONS:
- Monica being married.
- Maria being married.
Answer: Maria being married.

Problem: How does the sentence end?

When the functions were calculated, it took longer than the equations, so the 
OPTIONS:
- functions were simple.
- equations were simple.
Answer:
equations were simple.