[Q]: How does the sentence end?

Natalie found more mushrooms when foraging than Sarah because

[A]: Natalie had a keener sense of smell.

[Q]: How does the sentence end?

The man had to pay more taxes on the lotto winnings than the casino earnings. That's because the

[A]: lotto winnings added up to a greater figure.

[Q]: How does the sentence end?

Morgan preferred to use her money instead of the credit card to pay her bills because the

[A]:
credit card was expensive.