Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.) Pig : Piglets :: Deer : ?

Correct — D. Rule: first word is the adult animal, second is the name for its young.

A pig's young are piglets. A deer's young is a fawn.

The link is animal → offspring, and of the four words only fawn names the young of a deer, so option (d) completes it.

Why the others are wrong

• (a)
  Foal — A foal is the young of a horse, and of related animals such as the donkey. It is not used for a deer.
• (b)
  Pup — A pup is the young of a dog, and of animals such as seals. It is not the word for a young deer.
• (c)
  Calf — A calf is the young of cattle, and of elephants and whales. The general English word for a young deer is fawn.

Animal-and-young pairs are pure vocabulary. There is no reasoning step to fall back on if the word is simply missing.

Build the list once and keep it: cow → calf, horse → foal, dog → puppy, cat → kitten, goat → kid, sheep → lamb, pig → piglet, deer → fawn, lion → cub, duck → duckling.

Learn each as a pair. The words are not derived from the animal's name, so there is nothing to work out under exam pressure.

Key facts

• A fawn is a young deer.
• A foal is a young horse.
• A calf is a young cow, and the word is also used for young elephants and whales.

Common traps

• Choosing calf, which fits cattle and some large deer but is not the general word for a young deer
• Reading the plural Piglets as a clue and looking for a plural option
• Guessing pup, which covers dogs and seals but never deer

No directly related past PYQ was found.