Cach answer choice below represents a relation by a set of ordered pairs. In which of the answer choices is the relation function?

Select all correct answers.

Select all that apply:

$\{(-1,2),(2,6),(9,10),(6,6)\}$

$\{(1,2),(3,12),(4,6),(3,4)\}$

$\{(-1,11),(-2,2),(-5,-3),(7,11)\}$

$\{(1,11),(-1,8),(-4,7),(-1,-5)\}$

$\{(-3,0),(-3,14),(2,4),(-5,3)\}$