Consider the Following Data Which Describe the Amount of Time

Multiple Choice

Consider the following data which describe the amount of time in minutes students spend studying for a quiz: 10,11,11,12,12,14,15,18,19,20,22,24,39,40,41,44,46,50,52,52,53,55,70.
What numbers make up the leaf of the last stem?

A) 0,1,1,2,2,4,5,8,9
B) 0,1,4,6
C) 0,2,2,3,5,0
D) None of the above