An equation of the line of best fit shown in the scatter plot is y = 9/2 x + 22. A. on average, children will be about 9 inches taller when they are 2 years old

B. on average, children will grow about 9 inches taller when they 2 years old

C. On average, children grow about 9 inches every 2 years in their first 5 years

D. on average, children will grow 2 inches every year for their first 9 years