The following graph shows the average profit of two fruit-sellers A and B in thousands (Rs.) per year from the year 1995 to 2000. Consider the graph and answer the 4 (four) items that follow :

What is the difference between the average profit of B and A in the year 1998 ?
(a) – Rs. 100 (b) – Rs.1,000 (c) + Rs. 600 (d) – Rs. 300