In Pedigree Analysis, Consanguinity Refers To

In pedigree analysis, consanguinity refers to:

A) mating between two heterozygous carrier parents.
B) the realization that phenotypes between children and grandparents are often more closely related than between children and parents.
C) mating between two closely related parents.
D) a situation where the children of two parents are adopted.
E) a situation where only one individual in the entire pedigree is affected with the trait or disorder.