Linus Pauling Figured Out That the Type of Hemoglobin Protein

Linus Pauling figured out that the type of hemoglobin protein in a person was an inherited trait. Why was this important?

A) It was not known that there were different types of hemoglobin, and some caused disease.
B) It meant that genes were inherited, which was unknown at the time.
C) It meant that genes, which are inherited, must be what determine protein structure. At the time, no one knew what genes were made of or did.
D) It actually wasn't important because, as it turned out, he was unable to determine the precise differences between hemoglobin molecules.
E) It established Linus Pauling as the "Father of Molecular Medicine" as this was the first time anybody used molecular medicine in developing disease treatments.