Match the following

List-I (Operations Research in India)	List-II (Year)
a. Introduction	1. 1964
b. Operation Unit setup	2. 1949
c. O.R. Society of India	3. 1953
d. OPSEARCH	4. 1957

A. Customer selling B. Market research C. Customer buying D. Consumer behaviour

A. Production Planning and Control B. Production C. Inventory control D. All of the above

A. Minimum Investment in work in progress B. Better Production Control C. Early detection of mistakes or badly produced items D. All of the above

A. to differentiate the product B. to charge differential price C. to sell the product in different countries D. to give attractive name to a product