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: Coal : Heat :: Wax : ?

The answer is B. Candle.

Coal is a fuel that is burned to produce heat. Wax is a substance that is used to make candles. When wax is burned, it produces light. Therefore, the relationship between coal and heat is the same as the relationship between wax and light.

A. Energy is not a substance that can be burned to produce light. C. Light is a product of burning wax, not the substance that is burned. D. Bees are not related to the burning of wax.