Choose the pair in which the words are differently related from the rest.

Pelican : Reptile
Gnu : Antelope
Elk : Deer
Shark : Fish

The correct answer is B. Gnu: Antelope.

A pelican is a bird, a gnu is an antelope, an elk is a deer, and a shark is a fish. Antelopes and deer are both hoofed mammals, while pelicans and sharks are both vertebrates. However, gnus are not antelopes. They are in the same family as cattle, sheep, and goats.

Here is a brief explanation of each option:

  • A pelican is a large water bird with a long bill and a pouch under its lower bill. It uses its pouch to catch fish.
  • A gnu is a large African antelope with a long head and a beard. It lives in herds.
  • An elk is a large deer with large antlers. It lives in North America and Europe.
  • A shark is a large fish with sharp teeth. It lives in the ocean.