The answer is B. They are both from the same species.
The definition of a species involves organisms that can mate with each other under natural conditions, and this mating produces viable offspring that are themselves fertile. Physical or morphological similarity between organisms is not sufficient to make two given organisms the same species. Likewise, organisms that may appear quite different from each other (e.g., different breeds of dog) can be shown to be the same species because they can mate and produce fertile offspring.
Why were the wrong answers wrong?
A. Somatic cells of animals are diploid, never haploid.
C. Animals can be the same species and yet have different alleles at the same gene locus (e.g. blood types).
D. Animals can mate with different blood types.
E. Choice B is a viable answer.
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