Which of the following, if true, would most weaken the authors assertion that, in the 1970
A.Corporate contracts with minority-owned businesses totaled $ 2 billion in 1979.
B.Between 1970 and 1972, corporate contracts with minority-owned businesses declined by 25 percent.
C.The figures collected in 1977 under-represented the extent of corporate contracts with minority-owned businesses.
D.The estimate of corporate spending with minority-owned businesses in 1980 is approximately $ 10 million too high.
E.The $1.1 billion represented the same percentage of total corporate spending in 1977 as did $ 77 million in 1972.