Observe the options:
\Find the set of ordered pairs.
\Option A:
\The ordered pair is a relation that does not contain two pairs with the same first component,Thus it does not a function.
\Option B: The ordered pair is a relation that is different pairs with first component,Thus it is a function.
\Option C:The ordered pair is a relation that does not contain two pairs with the same first
\component,Thus it does not a function.
\Option D:The ordered pair is a relation that does not contain two pairs with the same first
\component,Thus it does not a function.
\Therefore, Option B is the correct ordered pair.
\Option B is right choice.