Generally, Only Female Cats Have the Tortoiseshell Phenotype for Fur

Multiple Choice

Generally, only female cats have the tortoiseshell phenotype for fur color. Which of the following statements explains this phenomenon?

A) A male inherits only one allele of the X-linked gene controlling hair color.
B) The Y chromosome has a gene blocking orange coloration.
C) Only males can have Barr bodies.
D) Multiple crossovers on the Y chromosome prevent orange pigment production.