Which Statement Correctly Represents the Distinction Between the Terms "Genotype

Which statement correctly represents the distinction between the terms "genotype" and "phenotype"?

A) Phenotype is the genetic composition of an organism, and genotype is the physical appearance.
B) There is no difference between a genotype and a phenotype.
C) A phenotype is dominant, and a genotype is recessive.
D) The genotype is the genetic composition of an organism, and the phenotype is its physical appearance.