Answer:
Option-C
Step-by-step explanation:
Hemoglobin is a protein involved in carrying the oxygen from one part of the body to another by binding it. The hemoglobin structure is found in many forms known as alpha, beta, gamma, delta.
These hemoglobin proteins are coded by different genes controlling the formation of these structures.
These structures are present in different forms at different developmental stages due to expression of different genes at a different time of development like the fetus has gamma chain hemoglobin but adults posses only alpha and beta chain proteins.
Thus, Option-C is correct.