I think the answer is b or c, but I’m not sure which one. 100 points to whoever knows this!

Answer:
c.
Step-by-step explanation:
it's because its the ratio of y to x.
Answer:
C
Step-by-step explanation:
If y is proportional to x, then y = kx (for some constant k)
Therefore, k is the slope (and therefore the unit rate)
So when x = 1, y = k
Similarly when x = 2, y = 2k
So (1, y) represents the ratio of y to x