Answer:
The correct option is A.
Step-by-step explanation:
A geometric sequence is defined as
[tex]A(n)=ar^{n-1}[/tex]
Where, a is the first term of the sequence, r is the common ratio and n is number of term. So, n can not be negative or zero.
In option A, the given sequence is
[tex]A(n)=P(1+i)^{n-1}[/tex]
Where, n is positive integers.
Here the first term is P and (1+i) is the common ratio. So, this sequence is geometric sequence.
Therefore the correct option is A.
