Based on Current Research Evidence, Which of the Following Best

Multiple Choice

Based on current research evidence, which of the following best describes the contribution of shared and nonshared environmental influences on temperament?

A) Shared environmental influences are the strongest environmental contributors to an individual's temperament.
B) Nonshared environmental influences and shared environmental influences contribute equally to an individual's temperament.
C) Shared environmental influences have little, if any, impact on an individual's temperament.
D) Nonshared environmental influences are the strongest environmental contributors to an individual's temperament.