The below bar graph represents the number of students who qualified 1n the GATE exam. the GATE exam, the CAT exam and those who qualified in none of these exams. (Given that there are no students who passed two or more exams.)

The percentage of students who qualified in at least one of the three exams 1n 2015 was:

A

72.72%

B

77.67%

C

83.83%

D

67.67%