When All of the Variation in a Population Is Due

When all of the variation in a population is due to environmental sources and there is no genetic variation,broad sense heritability (H²) :

A) is zero and all of the phenotypic variability is due to loci at other locations.
B) is zero and all of the phenotypic variability is due to environment.
C) is some negative value indicating the phenotypic variability is due to some recessive loci.
D) is some positive value indicating the phenotypic variability is due to some dominant loci.