Three players A, B, C toss a coin in turn till head shows. Let p be the probability that the coin shows a head. Let `alpha,beta,gamma` be respectively the probabilities that A, B and C get first head then

Options

A. `alpha = p/(1-q^(3))`, where q = 1 - p
B. `beta = (p(1-p))/(1-q^(3))`
C. `gamma = (p-2p^(2)+P^(3))/(1-q^(3))`
D. All of these

Answer

D