PLEASE ANSWER!!

Question 2 of 10
Which of the following would best work as a topic sentence in a paragraph?
A. Therefore, a hybrid will save you money.
B. Hybrids get better mileage than non-hybrids, often by as much as
10 to 15 miles per gallon.
C. Other alternatives, such as the hydrogen fuel cell, are not currently
available.
D. There are three main reasons to buy a hybrid car.