What is codominance and what is an example of it? Use 2-3 sentences to answer your question.

Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group., where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.

the answer to your question is:

c. complementary base-pairing