I think it's D. (sorry if i'm wrong)
Answer:
slope = 3
Step-by-step explanation:
rise/run = 3/1 = 3
Both can be right because if the function goes up, turns and goes down, between x = -2 and x = 2, it can happen that f(-2) = f(2) and then the average rate of change is [f(2) - f(-2)] / [2-(-2)] which is 0/4 = 0.
A: 1:1 unless they want you to count both arms then it would be B: 2:2