Fill in the blank with a suitable preposition:
A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Option B)for is correct as it is used to indicate what is favourable to whom. The other options are wrong as on, in, and near indicate a a surface, a location inside an area, and a position close to something respectively. These uses don't fit in the given question. The correct answer is B)for.