Examine this set of ordered pairs. (2,5) (8,9) (11,6) (18,2) (7,9) Is the set of ordered pairs a function? Choose the answer that's entirely correct.

(A) The set of ordered pairs is a function, because each input has exactly one output.


(B) The set of ordered pairs is not a function, because the output 9 has two different input values.


(C)The set of ordered pairs is a function, because each output has exactly one input.

(D) The set of ordered pairs is not a function, because the number 2 is both an input and an output.