Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A preposition is a word placed before a noun or a pronoun to show in what relation the person or a thing denoted by it stands in regard to something else.
Reason (R): The words a, an and the are called Articles. They come before nouns.
In the light of the above statements, choose the most appropriate answer from the options given below: