Dr McCallum's Class Is Learning About Genes

Dr. McCallum's class is learning about genes. He explains that not all of the information contained in our genes is used, either because the environment doesn't trigger certain tendencies or because another genetic tendency took precedence. All of a person's genetic information, regardless of whether particular tendencies are expressed, is referred to as

A) genotypes.
B) phenotypes.
C) alleles.
D) chromosomes.