Why Is the Cost of Sex Sometimes Referred to as the "Cost

Why is the cost of sex sometimes referred to as the "cost of males"?

A) Males do not contribute genes to the next generation.
B) Males do not produce new offspring.
C) With finite resources, males take the place of offspring-producing females.
D) Sperm cells do not contribute any substantial energy resources to the eggs they fertilize.
E) B, C, and D