[Q]: How does the sentence end?

Knowing she would be very thirsty on the hike, the woman chose to take the flask instead of the bottle because the

[A]: flask held more water.

[Q]: How does the sentence end?

The piano that we just bought plays better than the keyboard because the

[A]: piano is in tune.

[Q]: How does the sentence end?

The infection prone patient was moved from the ward to the private room, since the

[A]:
room was cleaner.