Which of the following mammals lays eggs?

Correct answer: (c) Echidna

Explanation

The Echidna is a monotreme – an egg-laying mammal of family Tachyglossidae.

It lays a single soft-shelled egg into its pouch, alongside the platypus as the only egg-laying mammals.

Hedgehog, Loris and Kangaroo are viviparous, giving birth to live young.