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 A)over is correct as it indicates a higher position. The other options are wrong as out of, on, and up indicate that something is no longer in, a surface, and a movement towards something higher respectively. These uses don't fit in the given question. The correct answer is A)over.