Q:Fact 1: Monotremes are mammals that reproduce by laying eggs. Fact 2: Well, platypuses are mammals, and they lay eggs. Given the two facts above, answer the question "A platypus is an example of _." with the following options: - Marsupial. - Monotremes. - insects - animals - killing insects - Amphibian. - Placental mammal. - matter vibrating
A:
Monotremes.