The following line graph gives the percentage of the number of candidates who qualified an examination out of the total number of candidates who appeared for the examination over a period of seven years from 1994 to 2000.

Q:

The difference between the percentage of candidates qualified to appeared was maximum in which of the following pairs of years?

• 1
  1994 and 1995
• 2
  1997 and 1998
• 3
  1998 and 1999
• 4
  1999 and 2000
• 5
  None of these