Fill in the blanks with suitable prepositions:
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 D)Instead of/ without is correct as instead of indicates something in place of the other and without indicates exclusion. The other options are wrong as for and on indicate a purpose and a surface respectively. These uses don't fit in the given question. The correct answer is D)Instead of/ without.