A population has two alleles, A and a, initially at frequencies of 0.8 (A) and 0.2 (a). If overdominance has been acting

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A population has two alleles, A and a, initially at frequencies
of 0.8 (A) and 0.2 (a). If overdominance has been acting on this
population for several generations, you could reasonably
assume:
Group of answer choices
a. the population has reached Hardy-Weinberg equilibrium
b. either allele is equally likely to go to fixation in a few
more generations
c. the frequency of A is unlikely to change in a few more
generations
d. the frequency of A is likely to go to fixation in a few more
generations
e. the population will continue evolving in response to
selection against the "a" allele