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.
John knew everything about his project. He presented it in an interesting way.
A.Not only did John know everything about his project, but also he presented it in an interesting way.
B.John knew everything about his project so that he presented it in an interesting way.
C.Because John knew everything about his project, no one could present it in a more interesting way.
D.Knowing everything about his project allows John to present it in an interesting way.