Help please Does this table represent a function? Why or why not?

Hours of
Training
10
20
30
40
50
60
70

Monthly
Pay
1220
1420
1620
1820
2020
2220
24 20

O A. No, because each x-value is different.

B. Yes, because the x-values are positive numbers.

O C. Yes, because every x-value corresponds to exactly one y-value.

O D. No, because none of the y-values are the same.