All except the third option.
You have to take the time to input the options. Otherwise we can´t assist.
A multitude of factors should be considered. BMI, diet, activity levels, health conditions, etc.
The best way to describe a human sperm cell is a tad pole (Baby frog). Like the sperm cell the tad pole has a head, body and a tail. Though tad poles are finished products, the sperm cell needs to combine with the egg cell for it to be fertilized.
D neither a nor b is right
