People missing one or more clotting factors will have hemophilia anemia leukemia

People missing one or more clotting factors will have hemophilia.

Reasoning: Hemophilia is a disorder in which blood doesn't clot as it should.

Anemia is a condition where the blood does not have enough healthy red blood cells.

Leukemia is a cancer of blood forming tissues at which it hindering the body's ability to fight infection.

Answer-

hemophilia

Reason-

It is a blood clotting disorder

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.