Which statement describes how to determine if a relation given in a table is a function?

A) If none of the output values are repeated, the relation is a function.
B) If none of the input values are repeated, the relation is a function.
C) If any of the input values are equal to the output values, the relation is a function.
D) If all the output values are paired with the same input value, the relation is a function.

Question

Which statement describes how to determine if a relation given in a table is a function?

A) If none of the output values are repeated, the relation is a function.
B) If none of the input values are repeated, the relation is a function.
C) If any of the input values are equal to the output values, the relation is a function.
D) If all the output values are paired with the same input value, the relation is a function.

will.h · Answer

Hint 
There must be one x value (input) to each y value (output)

will.h · Answer

However the inputs cannot have same values.m they all must be exceptional

ccrruv · Answer

C?

will.h · Answer

B actually
Cuz as I said x values (input) must indicates exceptional values 
(non-repeatetd

will.h · Answer

Medal if u don't mind