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.
He was able to finish his book. It was because his wife helped him.
A. If only he had been able to finish his book
B. If it weren’t for his wife’s help, he couldn’t have finished his book
C. Without his wife’s help, he couldn’t have finished his book
D. But for his wife’s help, he couldn’t finish his book