For a common emitter configuration, if $\alpha$ and $\beta$ have their usual meanings, the incorrect relationship between $\alpha$ and $\beta$ is

Question

( A ) $\alpha = \frac{\beta}{1+\beta}$
( B ) $\alpha = \frac{\beta^2}{1-\beta^2}$
( C ) $\frac{1}{\alpha} = \frac{1}{\beta} + 1$
( D ) $\alpha = \frac{\beta}{1-\beta}$