Answer:
C or D
Explanation:
✔️If the ordered pair (8, 3) was added to the table, we would have two one input value, 8, having two different outputs, 4 and 3 respectively. The table therefore ceases to be a function. Each input value in a function must have only one output value. Otherwise, it ceases to be a function.
✔️Also, if we look at other options, we would see that we also have another orders pair that can make the table not to be function anymore once it's added to the table.
The ordered pair (-3, 4), when added, will make us have one input value, -3, having two output values, 4 and 6 respectively. This will make the table not to become a function.
✔️Therefore, there are two correct options, they are C or D.