Now we are going to use the geom_histogram function to make a histogram of the heights in the height data frame. When reading the documentation for this function we see that it requires just one...

Now we are going to use the geom_histogram function to make a histogram of the heights in the height data frame. When reading the documentation for this function we see that it requires just one mapping, the values to be used for the histogram. Make a histogram of all the plots. What is the variable containing the heights?

A. sex

B. heights

C. height

D. heights$height