If Broad-Sense Heritability for a Trait Is Very High and Narrow-Sense

Multiple Choice

If broad-sense heritability for a trait is very high and narrow-sense heritability is very low, which of the following statements must be TRUE?

A) Additive variance must be high relative to total phenotypic variance.
B) Dominance variance must be high relative to total phenotypic variance.
C) Environmental variance must be high relative to total phenotypic variance.
D) Genotypic-environmental covariance must be high relative to total phenotypic variance.
E) No conclusions can be drawn without additional information.