If a donkey is crossed with a zebra, the offspring is a zebronkey. Zebronkeys cannot produce offspring. Which statement is correct?
- ADonkeys and zebras belong to different species because their offspring are not fertile.
- BDonkeys and zebras belong to different species because they do not look exactly the same.
- CDonkeys and zebras belong to the same species because they look alike.
- DDonkeys and zebras belong to the same species because they produce offspring.