Mark the letter A, B, C, or D to indicate the sentence that is best written from the words/phrases given.Câu hỏi Hang-gliding / not as frightening /free fall parachuting A. Hang-gliding is not as frightening and free fall parachuting. B. Hang-gliding was not as frightening as free fall parachuting did. C. Hang-gliding is not as frightening as free fall parachuting is. D. Hang-gliding does not as frightening as free fall parachuting does.