There were 2 classes A& B, with a total of 45 students in them. Students of both the classes were asked to go on a school trip but only 1/5th of the students from class A and 2/3rd of the students from class B agreed to go. What is the minimum possible number of students who did not agree to go on the trip?
A. 8
B. 16
C. 17
D. 22
E. 23
A. 8
B. 16
C. 17
D. 22
E. 23