Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
They think that the prisoner escaped by climbing over the wall.
A. The prisoner is thought to escape by climbing over the wall.
B. The prisoner is thought escaped by climbing over the wall.
C. The prisoner is thought having escaped by climbing over the wall.
D. The prisoner is thought to have escaped by climbing over the wall.