Let $\displaystyle X1,X2,...Xn$ be a random sample from Geometric Distrubution with parameter $\displaystyle p$, that is $\displaystyle f(x;p)=p(1-p)^{(x-1)}$

Find the Minimum Variance Unbiased Estimator for $\displaystyle p[X=c]$, where $\displaystyle c $ is a known positive interger.

please help on this one. thank you.