Find the First Four Terms Sequence $a _ { n } = n - 1$

Find the first four terms sequence $a _ { n } = n - 1$

A) $a _ { 1 } = - 1$ , $a _ { 2 } = 0$ , $a _ { 3 } = 1$ , $a _ { 4 } = 2$
B) $a _ { 1 } = 0$ , $a _ { 2 } = 1$ , $a = 2$ , $a _ { 4 } = 3$
C) $a _ { 1 } = - 2$ , $a _ { 2 } = - 3$ , $a _ { 3 } = - 4$ , $a _ { 4 } = - 5$
D) $a _ { 1 } = 1$ , $a _ { 2 } = 2$ , $a = 3$ , $a _ { 4 } = 4$
E) none of these