If P Is the Frequency of the W Allele in a Population

Multiple Choice

If p is the frequency of the W allele in a population, why do we equate the WW individuals with the p² portion of the Hardy-Weinberg equation?

A) The Hardy-Weinberg equation describes the frequencies of dominant alleles only.
B) The WW individuals have two copies of the allele represented by p.
C) The ww individuals are all killed by lethal recessive genes.
D) The frequency of p is always equal to the frequency of q.