Select the proper word to fill in the blank of the sentence -`Every year the Nobel Prize is awarded for            to the field of literature.

A preposition is a word or group of words used before a noun, pronoun, or noun phrase to show direction, time, place, location, spatial relationships, or to introduce an object. Some examples of prepositions are words like in, at, on, of, and to. Prepositions in English are highly idiomatic.