The following question, consist of two words each that have a certain relationship to each other, followed by four lettered pairs of words. Select the lettered pair that has the same relationship as the original pair of words: Hillock : Mountain

The correct answer is: Sapling : Tree

A hillock is a small hill, while a mountain is a large hill. A sapling is a young tree, while a tree is an adult tree. An ant is a small insect, while an elephant is a large mammal. A day is a unit of time, while a year is a longer unit of time. An ocean is a large body of water, while a river is a smaller body of water.

The relationship between hillock and mountain is that a hillock is a smaller version of a mountain. The relationship between sapling and tree is that a sapling is a younger version of a tree. The relationship between ant and elephant is that an ant is a smaller version of an elephant. The relationship between day and year is that a day is a shorter version of a year. The relationship between ocean and river is that an ocean is a larger version of a river.

Of the five options, only sapling and tree have the same relationship as hillock and mountain. A sapling is a smaller version of a tree, just as a hillock is a smaller version of a mountain.