a state park uses a histogram to record the heights of various trees. suppose three of the trees increase in height from 56 inches to 66 inches over a period of 2 years. which bar(s) will change on the histogram?
a) only the yellow bar will change.
b) both the brown and blue bars will change.
c) both the yellow and blue bars will change.
d) the brown, blue, and yellow bars will change.