Erythroblastosis foetalis is most likely when ____.
Correct answer B. an Rh-negative mother carries an Rh-positive foetus after an earlier Rh-positive pregnancy
Explanation
The first Rh-positive baby sensitises the Rh-negative mother; in a later pregnancy her anti-Rh antibodies cross the placenta and destroy foetal red cells.
Answer checked How we write and check questions
Discussion