Experts Estimate That the Heritability of Intelligence Is Approximately 50

Multiple Choice

Experts estimate that the heritability of intelligence is approximately 50%.This suggests that

A) 50% of a person's intelligence is due to genetic inheritance.
B) 50% of a person's intelligence is due to environmental factors.
C) 50% of the variability in intelligence in a population of individuals is due to variations in genetic inheritance.
D) 50% of the difference in average intelligence between different ethnic groups is due to genetic inheritance.