Please choose the correct answer to the question: A mouse is homozygous for black fur (BB). The other parent is heterozygous for black fur with a recessive trait for brown fur ( Bb ). If black is the dominant trait, what percentage of the offspring will be brown?

Answer1: 100% Answer2: 50% Answer3: 25% Answer4: 0%

Answer format: answer1/answer2/answer3/answer4