During Fertilization in Sea Urchins,the Protein Bindin Binds to a Bindin

Multiple Choice

During fertilization in sea urchins,the protein bindin binds to a bindin receptor on the egg.How would the process of fertilization be affected if a mutation was present in the binding receptor?

A) The sperm would still penetrate the egg but further cell division would not occur.
B) The sperm would not bind to the surface of the egg and so fertilization will not occur.
C) The mutated receptor would allow multiple sperm cells to enter the egg (polyspermy) .