In one species of rabbit, the gene for brown fur (B) is dominant, while the gene for black fur (b) is recessive. One rabbit has the dominant allele for brown fur and the recessive allele for black fur. Another rabbit has two recessive alleles. If the two rabbits have offspring, what are the odds of one of the offspring having brown fur? A. 25% B. 50% C. 75% D. 100%