Nancy rushed into the house after school and announced to her parents,"My personality is _____! So many genes make me who I am!"

A) polygenic
B) nonadditive
C) multifactorial
D) monozygotic

Polygenic

Relating to or involving the influence of multiple genes on a specific trait, characteristic, or disease.

Nonadditive

A characteristic of effects or interactions in which the total outcome is not simply the sum of individual components.

Multifactorial

Involving or dependent on a number of factors or causes, often used in the context of genetics and diseases.