Select the function that represents a geometric sequence.
o a. a(n) = p+(n-1); • p, where n is any real number
o b. a(n) = p(1 + )" – 1, where n is any real number
o c. a(n) = p+(n-1); • p, where nis a positive integer
o
d. a(n) = p(1 + )n = 1, where n is a positive integer