Sequencing of a Population of 110 Dogs Has Revealed Nine

Sequencing of a population of 110 dogs has revealed nine polymorphic sites within a small region of chromosome 11.All four possible variants were observed for each site.Based on these data,one can say that:

A) all the dogs in the sample population have different haplotypes.
B) different haplotypes have different frequencies in the sample population.
C) not all possible haplotypes are present in the sample population.
D) the sample population is not representative of the entire population.
E) some of the dogs in the sample population have the same haplotype.