Katie recorded the number of miles she drove for each of 9 days. She drive a different number of miles each day. This box plot summarizes her information. Katie drove 30 miles on each day of two additional days. She redrew the box plot to include this data. Which statement must be true? A. The value of the range decreased
B. The value of The mean remain the same
C. The value of a medium remain the same
D. The value of the interquartile range incrased