Answer:
B. the rate of change of item I is equal to the rate of change of item II
Explanation:
rate of change = rise / run (change in y value / change in x value)
for item I: the x and y values are increasing by 1
so rise / run = 1 / 1 = 1
for item II: the x and y values are increasing by 1
so rise / run = 1 / 1 = 1