Imagine That Researchers Estimated the Heritability Score for Trait T

Imagine that researchers estimated the heritability score for trait T to be 75%. Which statement is a CORRECT interpretation of this estimate?

A) There is little individuals can do to improve their level of trait T.
B) John Smith's level of trait T is 75% due to his genes.
C) Differences between males and females on trait T are 75% due to differences in the genetic makeup of males and females.
D) This heritability estimate tells us nothing about the relative contribution of genetic and environmental factors for the development of trait T in an individual.