How is it possible that organisms with the same phenotype can have different genotypes? a Different physical traits (genotypes) can lead to the same genetic makeup (phenotype)
b Different physical traits (phenotypes) can lead to the same genetic makeup (genotype)
c Different genetic makeups (phenotypes) can lead to the same physical traits (genotype)
d Different genetic makeups (genotypes) can lead to the same physical traits (phenotype)

I think it is C (Different genetic makeups can lead to the same traits.)

Explanation:

An organism's genotype is the combination of alleles found at a particular gene. The phenotype is how theses alleles are expressed to form a trait.

In a diploid organism there are two alleles for every gene. In simple Mendelian traits. one allele is dominant over the other, which is recessive. That means, that the phenotype displayed will be associated with the dominant allele whenever it is present.

phetotypes is physical looks. people look similar but have different genotypes you get what im saying, because one genotype gets masked over the other. like blond and black come together black will win but blond is still in genes so thats how this would work ;)  

hope i helped