Place the Following Steps of Fertilization in the Correct Order

Multiple Choice

Place the following steps of fertilization in the correct order from the beginning. 1) Sperm head enlarges and gives rise to the sperm cell nucleus.
2) Sperm cells attach to the cumulus cells of a secondary oocyte.
3) The head of one sperm cell penetrates the zona pellucida and enters the oocyte cytoplasm.
4) The oocyte nucleus completes the second meiotic division and gives off a second polar body.
5) Fusion of the two nuclei forming a zygote.

A) 1,2,3,4,5
B) 2,3,4,5,1
C) 2,3,4,1,5
D) 4,2,3,1,5
E) 3,1,2,5,4