Consider the following array of values found in a stem-and-leaf display:
5 | 4 6 7 8 8 9 9 9 9
Which of the following statements best reflects the meaning of this line?
A. The variance in the data set is 5.
B. There are nine items in the data set, whose first digit is five.
C. The numbers in the data set range from 4 to 9.
D. The values in the display are 95, 85, 75, 65, and 45; 95 appears four times and 85 appears twice.