Mark the letter A, B, C or D on the answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
She is too weak; she can’t sit up and talk to you.
A. If she weren’t too weak, she could sit up and talk to you.
B. If she hadn’t been too weak, she couldn’t sit up and talk to you.
C. If she weren’t too weak, she can sit up and talk to you.
D. If she isn’t too weak, she can sit up and talk to you.