Place the Following Statements Regarding Rh Incompatibility in the Correct

Place the following statements regarding Rh incompatibility in the correct sequence. Not all choices are included in each answer.
1) Hemolysis of fetal erythrocytes and anemia occur.
2) Maternal Rh-negative cells enter fetal blood.
3) Fetal Rh-positive cells enter maternal blood.
4) Elevated serum bilirubin levels develop in the fetus.
5) Antibodies to Rh-positive cells form in maternal blood.
6) Maternal Rh antibodies enter the fetal circulation.

A) 3, 1, 4, 6, 5
B) 6, 2, 4, 3, 5, 1
C) 3, 5, 6, 1, 4
D) 2, 3, 6, 1, 4