【正确答案】 B

【答案解析】The best approach to solving this problem is to find one number that is divisible by both 3 and 8, and then determine which of the answer choices also goes into that number. When you multiply 3 times 8, you get 24, which means that 24 is one number that is divisible by both 3 and 8. Of the answer choices, only 6 also goes into 24, so answer choice B must be correct. None of the other answer choices is a divisor of 24.