The diagram below shows a species of birds that live in different niches. Family A Family B Which of the following would be the best explanation for the fitness of Family B compared to Family A? Family A has longer beaks. Longer beak birds do not produce as many offspring. B Family A has chosen to have a small family because of the size of the remote island they inhabit. Family B has chosen to have as many offspring as possible. Family A has an ample supply of resources. The offspring are strong and able to mate. Family B has fewer resources to provide her offspring. The offspring are weak and small. D Family A has fewer resources to provide her offspring. The offspring are weak and small. Family B has an ample supply of resources. The offspring are strong and able to mate.