A.Legend: B.A= C.Systems analysts D.B= E.Programmers F.C= G.Computer and peripheral equipment operators H.D= I.Keypunch operators J.E= K.In 1970,which computer occupation employed the most people? L.Which computer occupation employed the most people in 1980? M.How many people?______3, N.In what year were the fewest programmers employed?______ O.Which computer occupation will employ 400 000 people in 1990?______