the common remainder be x. Then numbers (34041 - x) and (32506 - x) would be completely divisible by n. Hence the difference of the numbers (34041 - x) and (32506 - x) will also be divisible by n or (34041 - x - 32506 + x) = 1535 will also be divisible by n. Now, using options we find that 1535 is divisible by 307.