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: Mango : Fruit :: Potato : ?

The answer is A. Root.

A mango is a fruit, while a potato is a root vegetable. Fruits are the sweet, fleshy part of a plant that contains the seeds. Root vegetables are the edible parts of a plant that grow underground, such as potatoes, carrots, and beets.

The other options are not correct because:

• A potato is not a fruit.
• A potato is not a stem.
• A potato is not a flower.