[Q]: How does the sentence end?

Katrina helped Maria measure the liquid accurately for this experiment because

[A]: Maria was very careless.

[Q]: How does the sentence end?

He started a company dealing with housing rather than agriculture because the

[A]: agriculture was less lucrative.

[Q]: How does the sentence end?

Although Rachel was overall a better actress than Lindsey,

[A]:
Lindsey had ease playing older characters.