If a Trait is Located on the X Chromosome, Why

Question

If a trait is located on the X chromosome, why do males exhibit the trait all the time?
A) Males have two X chromosomes.
B) Males have two Y chromosomes.
C) Males have only one X chromosome.
D) Males have only one Y chromosome.

Accepted Answer

Males have only one X chromosome, so if a trait is located on the X chromosome, they will express it because they do not have a second X chromosome to potentially mask the trait.