Problem Solving (PS) | Re: The probability of success in a field event is the ninth part of the

The probability of success in a field event is the ninth part of the probability of failure. Successive and independent trials are held until success occurs for the first time. In these circumstances, the expected number of failures that should occur until the first success occurs is equal to:

(A) 2
(B) 3
(C) 6
(D) 9
(E) 10