My answer is A....because if:
0.20 > 0.10n + 0.05
then after subtraction and cross multiplication you get:
n > 1/2 but if 0.20 < 0.10n + 0.05 then n <1/2 or n = 1/2
we do not know what n could be but if it follows one those options then the choice is good. Choice 1 states that n<0.10 that also means that it is less than 1/2 which makes it the right answer choice
The second choice states that n > 0.01 but that could mean any one of those three options above so it is not sufficient.
"No! Try not. Do. Or do not. There is no try.