Find a General Term an for the Sequence Whose First $8,24,40,56 , \ldots$

Multiple Choice

Find a general term an for the sequence whose first four terms are given.
- $8,24,40,56 , \ldots$

A) $a _ { n } = 16 n - 2$
B) $a _ { n } = 8 n - 16$
C) $a _ { n } = 8 ( 16 ) ^ { n - 1 }$
D) $a _ { n } = 4 ( 4 n - 2 )$