How many electrons can be described by the quantum numbers n = 2, l = 1, ml = -1?

a.) 2
b.) 14
c.) 6
d.) 10
e.) 0

I thought it was 6 but here's my reasoning

n = 2 energy levels
l = 1 (p orbital)
ml = -1 (I don't think this is relevant to the question?)

3 answers

Oh but it is relevant and the answer is not 6. You may NEVER have more than 1 electron with the same two quantum numbers. But you may have two that differ by only one of the quantum numbers.
One electron can be n = 2, l = 1, ml = -1, and ms = +1/2
I can have a second electron with n = 2, l = 1, ml = -1 and ms = -1/2
10
it is 2!