In rumbunnies, sober is an autosomal recessive gene in which the rumbunnies are unable to utilize alcohol. Mating success in rumbunnies is a function of alcohol consumption so that sober individuals have only 75% as many offspring as normal rumbunnies. Assuming that the initial frequencies of S and s are 0.2 and 0.8

A) What are the initial genotypic frequencies (assume Hardy-Weinberg equilibrium)?
B) What are the relative fitnesses of SS, Ss, and ss?
C) what is the frequency of s after 1 generation of selection?