For a common emiter configuration if `a` and `beta` have their usualy meaning , the incorrrect relationship between `a and beta` is :
A. `alpha = (beta)/(1-beta)`
B. `alpha = (beta)/(1+beta)`
C. `alpha = (beta^(2))/(1+beta^(2))`
D. `(1)/(alpha)=(1)/(beta)+1`