[Q]: How does the sentence end?

The condition of Maria was a lot worse than Jessica because

[A]: Maria had an incurable disease.

[Q]: How does the sentence end?

Patricia chose a hardy cultivar to grow unlike Tanya because

[A]: Tanya had very fertile soil.

[Q]: How does the sentence end?

Maria got an A in English class, while Angela got an F because

[A]:
Maria always studied.