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.
The gentleman wanted to get some fresh air in the chamber. He opened the window
A. The gentleman wanted to get some fresh air in the chamber because he opened the window.
B. The gentleman opened the window in order to get some fresh air in the chamber.
C. The gentleman got some fresh air in the chamber, even though he opened the window
D. Having opened the window, the chamber could get some fresh air