In peas, the allele for yellow seeds (Y) is dominant to the allele for green seeds (y). What would be the genotype and phenotype ratios of offspring from a cross between Yy and yy individuals?

Genotype: all Yy; Phenotype: all yellow
Genotype: ½ Yy : ½ yy; Phenotype: all yellow
Genotype: all yy; Phenotype: all green
Genotype: ½ Yy : ½ yy; Phenotype: ½ yellow : ½ green