Answer:
it is C. Q3- Q1 tell me if it was right or not
OR if it is for a listing order it would be this List in ascending order:-
32 39 45 48 50 57 65 68 70
Q1 = (39+45)/2 = 42
Q2 = 50
Q3 = (65+68)/2 = 66.5
Correct option is the first one if there are choices