Final answer:
The number that can be divided into 9 equal groups without a remainder is 387.
Step-by-step explanation:
In order to find a number that can be divided into 9 equal groups without a remainder, we need to look for a number that is divisible by 9. To do this, we can check if each of the given numbers is divisible by 9.
Looking at the options, we find that 387 is divisible by 9 because the sum of its digits (3 + 8 + 7) equals 18 which is divisible by 9. Therefore, the answer is B. 387.