In Genomic Imprinting

In genomic imprinting:

A) a gene is imprinted in the progeny, depending upon the phenotype of the parent.
B) the expression of a gene depends on the parental phenotype.
C) a gene is imprinted in the progeny, depending upon the age of the parent.
D) the expression of a gene in the progeny depends upon which parent the gene is inherited from.
E) only dominant traits are expressed.