I Need Help

The graph makes it appear that there are how many times as many students per teacher at North HS as there are at West HS?
A bar graph titled Student Teacher Ratios at Area High Schools has North H S, East H S, West H S on the x-axis, and ratio on the y-axis, from 10 to 22 in increments of 4. West H S, 12; East H S, 18; North H S, 20.
a.
2 times
b.
3 times
c.
4 times
d.
5 times

Please select the best answer from the choices provided