Answer
Option B is correct.
(1, 2) is the missing ordered pair.
Step-by-step explanation
A function is an expression that takes up each value of an independent variable (x) and gives a corresponding value of a dependent variable (y) without the same values of the independent variable (x) giving different values of the dependent variable (y).
So, the answer to this question will be an option that includes a totally new value of x giving a value of y and not a value of x that is already amongst those given, which is then giving a new value of y. That makes the relation a non-function.
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