Quantum number

For an electron value of $n$ , the value of $l$ ranges from $0$ to $n-1$ . For an electron value of $l$ , the value of $m$ ranges from $-l$ to $l.$

Choice A: Invalid because $l = 0 \Rightarrow m = 0$ .

Choice B : Invalid because $n = 3 \Rightarrow l = 0, 1, 2$ .

Choice C: Valid because $n = 2 \Rightarrow l = 0, 1, 2 \Rightarrow m =(0), (0, \pm 1), (0, \pm 1, \pm 2).$

Choice D: Invalid because $l$ cannot be negative.