Stem Length, Seed Shape and Flower Colour in Pea Plants

Multiple Choice

Stem length, seed shape and flower colour in pea plants are determined by three independently assorting genes. Each trait has a dominant and a recessive phenotype. If a plant that is heterozygous for the three traits is allowed to self-fertilise, you would expect 3/8 of the offspring to be

A) homozygous for all three traits.
B) homozygous for the three recessive traits.
C) homozygous for one and heterozygous for two.
D) heterozygous for all three traits.
E) homozygous for two traits and homozygous for one.