Complete the sentence with the most suitable option:
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) in spite of the fact that is correct as it is used before one fact to make the another fact surprising. The other options are wrong as nevertheless, in spite of, and because of indicate despite what has just been said or referred to, the fact that is required, and a reason respectively. These uses don't fit in the given question. The correct answer is B) in spite of the fact that.