Find the Limit of the Sequence If It Converges; Otherwise $$a _ { n } = 1 + ( - 1 ) ^ { n } + ( - 1 ) ^ { n ( n + 1 ) }$$

Multiple Choice

Find the limit of the sequence if it converges; otherwise indicate divergence.
- $$a _ { n } = 1 + ( - 1 ) ^ { n } + ( - 1 ) ^ { n ( n + 1 ) }$$

A) 1
B) 3
C) 0
D) Diverges