Find a General Term $a_{n}$ , for the Given Terms of the Sequence

Multiple Choice

Find a general term, $a_{n}$ , for the given terms of the sequence.
- $0,2,6,12,20, \ldots$

A) $a_{n}=2^{n-1}-1$
B) $a_{n}=2 n-2$
C) $a_{n}=4 n-6$
D) $a_{n}=n^{2}-n$