Answer
D.
Work Step by Step
When the sperm fuses with the egg, the outside of the egg resists further sperm fusions (B.), the egg activates metabolically (A.), and the cytoplasmic contents rearrange (C.), making D. the best answer choice.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.