D) 2, 4, 8, 16, 32
Explanation:
In order for it to be a geometric sequence, it has to be multiplied by the same number every time. The only equation that demonstrates this is the last one since it is being multiplied by 2 every time.
The geometric sequence equation is
A(n) = a* r^{n-1}
a( n ) = term in the sequence
a = first term
r = common ratio (what it's multiplied by every time)
