A questão de BIOLOGIA mais difícil do ENEM 2020??

Do you agree that this was the most difficult biology question in ENEM 2020? A population is in genetic equilibrium regarding the ABO system, in which 25% of individuals belong to group O and 16% to homozygous group A. Considering that: p = frequency of IA; q = frequency of IB; and r = frequency of i, it is expected to find. Table The percentage of compatible donors for someone in group B in this population should be a) 11% b) 19% c) 26% d) 36% e) 60%