2. Which of the sets contains all the factors of 36? A. 1,2, 6, 12, 18, 36 C. 1,2,4,6, 9, 12, 18, 36 B. 1,2,3,4,6,9,12,18,36 D. 1,2,3,4,6,8, 15, 18,36​