Guinea pigs can have either short or long hair. The gene for short hair in guinea pigs is dominant over the gene for long hair. Two short-haired guinea pigs have a litter of eight offspring. Two of the offspring have long hair, and six of the offspring have short hair. What is true about the parent guinea pigs?
A. Only one of the parents carries the gene for long hair.
B. Both of the parents carry the gene for long hair.
C. The male parent contributed two long hair genes to the offspring.
D. The female parent contributed two long hair genes to the offspring.
Be quick please!