will giver brainliest to the person with the most detailed answer. That means tell me how you got ur answer. And the person who answers with the most clear explanation as well. Good luck

Graph C

Step-by-step explanation:

To tell if a graph represents a function, you can use the vertical line test to check if two or more points touch the line going from left to right. We can clearly see that in graph C, it fails the vertical line test because two outputs exist for one input multiple times. The line would be touching these two outputs on the same input.

i believe the answer is c.