Study the histogram and answer the question given below.
The graph represents the number of students obtaining a percentage of marks in class X Board examination in 2018 in a school.

The number of students who have secured less than 60% marks is what per cent less than the number of students who have secured 80% marks and above?

A

37.4%

B

33.5%

C

38.5%

D

29.7%