Question. A platypus is an example of _.
Options:
- (A) Marsupial.
- (B) Monotremes.
- (C) insects
- (D) animals
- (E) killing insects
- (F) Amphibian.
- (G) Placental mammal.
- (H) matter vibrating
Answer. (B)
What step-by-step reasoning justifies that answer?
Reasoning: Monotremes are mammals that reproduce by laying eggs. Well, platypuses are mammals, and they lay eggs. Platypuses are monotremes.