The set of quantum number not applicable to an electron

Options

A. `1,1,1,+(1)/(2)`
B. `1,0,0,+(1)/(2)`
C. `1, 0, 0, -(1)/(2)`
D. `2, 0, 0, +(1)/(2)`

Answer

A

Explanation

For n = 1, l can have only one value i.e., 0.