Answer:
B. Incomplete dominance is the correct answer.
Explanation:
This inheritance is termed as Incomplete Dominance because when a red bird and bluebird mate the result is a purple offspring as neither of the two colors was expressed.
Incomplete dominance is a feature in which offspring are formed are intermediate because allele is not fully expressed over the opposite paired allele and the offspring produced is the combination of both of their parent's character.
Thus Incomplete dominance is a correct answer.
