See the diagram and answer the following question.The number of students securing marks 60-80 is 4 times of the number of students securing which mark?

See the diagram and answer the following question.The number of studen

1.	See the diagram and answer the following question.The number of students securing marks 60-80 is 4 times of the number of students securing which mark?
A.	0-20
B.	20-40
C.	40-60
D.	80-100
Answer» E.