Answer:
No answer is correct.
Explanation:
To determine out, the listed option is matching with the common multiples of 6 and 15; we have to find the multiples of 6 and 15.
6 = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60.
15= 15, 30, 45, 60, 75, 90, 105, 120.
Option A: 30 and 60 can be the multiples of 6 and 15; however, 89 can not be the multiplies. So it is not an answer.
Option B: 30 and 90 can be multiplies of 6 and 15; however, 59 can not be the multiplies. So it is not an answer.
Option C: 90 can be multiplies of 6 and 15; however, 31 can not be the multiplies. So it is also not an answer.