Among the following statements which are the correct ones.A. Total salaries & wages over 2001-2003 as percent of total sales of the same period had been the highest for the iron & steel sector.B. In the year 2003, if all the companies were ranked in descending order in terms of salaries & wages as percent of sales, Videocon International would have been ranked the lowest.C. In the year 2002, if all companies were ranked in descending order in terms of R & D as percent of sales, Bharat Electronics Limited would have been ranked third.D. Of all companies that made profits in each year during 2001-2003, wipro registered the highest growth in profits for the period.