What would be the genotype of a male solid black rabbit?

The genotype of a male solid black rabbit is likely to be either homozygous (BB) or heterozygous (Bb) for the black coat color gene, where "B" represents the dominant allele for black fur and "b" represents the recessive allele for other colors. If the rabbit is homozygous (BB), it carries two copies of the black allele. If it is heterozygous (Bb), it still exhibits the black coat color due to the dominance of the "B" allele.