Choose the option that fills the blank with the most suitable word:
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 indicates a purpose. The other options are wrong as with, from, and in indicate inclusion, a source, , and the inside of an area respectively. These uses don't fit in the given question. The correct answer is B)for.