In Mendel's Garden Peas, Each Cell in a Pea Plant

In Mendel's garden peas, each cell in a pea plant has a total of:

A) one allele for each gene.
B) two alleles for each gene.
C) one allele for each gene, if it is a true-breeding parent and two if it is an F₁ offspring.
D) one allele for each gene, if it has green seeds and two if it has yellow seeds.
E) between one and four alleles for each gene.