Identify the relationship exhibited by the lead pair and accordingly, find the…

Concept: In this type of verbal analogy, the first term of each pair names a specific, established feed given to the animal in the second term — the relationship is not "any food" but the traditional TERM used for that animal's feed.

Application: Mash — a soft, wet mixture of crushed grain and bran — is the classic named feed for horses, giving Mash : Horse. Mast is the traditional collective name for the acorns and beechnuts that fall in oak and beech woodland; the age-old practice of turning pigs loose into such forests to eat this fallen mast is known as pannage. So the same feed-to-animal naming relationship gives Mast : Pig.

Contrast:

• Cow — the named feed for cattle is fodder or hay, not mast, so it breaks the naming pattern.

• Monkey — monkeys forage generally on forest fruit, but no dedicated feed-term parallel to mash exists for monkeys.

• Chimpanzee — chimpanzees also forage broadly on fruit, but again no specific named feed-term applies, so this option does not fit the pattern either.

Cross-check: Since pannage (mast-feeding for pigs) is the direct historical parallel to mash-feeding for horses, Pig is the only option that completes the same named feed-to-animal relationship.