Q: Fact 1: Platypus females lay their eggs in a burrow. Fact 2: Examples of monotremes are the Platypus and Echidna. Given the two facts above, what lays their eggs in a burrow?

Options: 1. mammals 2. alpacas 3. loose soil 4. animals 5. monotremes 6. honeybees 7. insects 8. ducks
The answer is:
5.