Answer:
Step-by-step explanation:
1) 11 is an odd number and prime number
2) option 3
45 = 1, 3, 5 , 15 , 9 , 45
45 = 1 * 45
45 = 3 *15
45 = 9 * 5
3) option 2
90 = 2 * 3 * 3 * 5
