Which among the following sets of fauna represents same taxonomical order?

Answer: [A] Whales, Dolphins, Porpoises

Marine mammals are a diverse group of animals. They include cetaceans (whales, dolphins, and porpoises), sirenians  (manatees and dugong)pinnipeds (true seals, eared seals and walrus), a few otters (the sea otter and marine otter) and the polar bear (usually grouped with the marine mammals).

This question is a part of GKToday's Integrated IAS General Studies Module