Help me right now I will mark brainliest

Answer:
B, because the first number shouldn't be repeated (in simple terms) And 19 is repeated twice
Step-by-step explanation:
Can I have brainliest?
Answer:
B.
Step-by-step explanation:
In the answer choice b, there are two points with one x-value, but different y-values. Therefore, b is not a function
Hope this helps!
Please mark as brainliest if correct!
Have a great day!