Write the First Five Terms of the Sequence

Multiple Choice

Write the first five terms of the sequence.Determine whether the sequence is arithmetic.If so, find the common difference.(Assume that n begins with 1.) ​
A_n = (2n) n
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A) 2, 8, 24, 64, 160Arithmetic sequenced = -2
B) 160, 64, 24, 8, 2Arithmetic sequenced = 2
C) 160, 64, 24, 8, 2Not an Arithmetic sequence
D) 2, 8, 24, 64, 160Arithmetic sequenced = 2
E) 2, 8, 24, 64, 160Not an Arithmetic sequence