In This Question, Assume That the Life Cycle of a Flowering

In this question, assume that the life cycle of a flowering plant begins with the germination of a seed and ends with the development of a fruit. Two events that occur in the life cycle are the fusion of sperm and central cell nuclei and the fusion of egg and sperm.

A) The fusion of sperm and central cell nuclei precedes the fusion of egg and sperm.
B) The fusion of egg and sperm precedes the fusion of sperm and central cell nuclei.
C) Both events occur more or less simultaneously.