Answer:
B. 3
Explanation:
Well, since there are options we can use the Process of Elimination:
Can 15 and 24 be divided by 8? No, so 8 is not a choice
Can 15 and 24 be divided by 3? Yes, 5 and 8 so 3 is a choice
Can 15 and 24 be divided by 2? No, so 2 is not a choice
Can 15 and 24 be divided by 5? No, so 5 is not a choice
The only answer is 3
Which is the answer