Erythroblastosis fetalis may occur in
A. a second Rh-negative fetus developing in an Rh-negative woman.
B. a first Rh-positive fetus developing in an Rh-negative woman.
C. a first Rh-negative fetus developing in an Rh-negative woman.
D. a second Rh-positive fetus developing in an Rh-negative woman.
Answer: D
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Describe the events associated with fertilization and early development
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