Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
We don't use a giant telescope. We can't see most of the stars.
A.If we use a giant telescope, we can see most of the stars.
B.Were we to use a giant telescope, we could see most of the stars.
C.Should we use a giant telescope, we can't see most of the stars.
D.If we used a giant telescope, we couldn't see most of the stars.