Identify the different cell types formed by mitosis

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed

Which individual below would be considered heterozygous? a.dd b.dd c.dd