3. The author of the passage would be most likely to agree with which of the following statements regarding the economists mentioned in line 1?
(A) Their beliefs are contradicted by certain economic phenomena that occurred in the United States during the 1960's and the 1980's.
(B) Their theory fails to predict under what circumstances the prices of foreign and domestic goods are likely to increase.
(C) They incorrectly identify the factors other than savings and investment rates that affect real interest rates.
(D) Their belief is valid only for the United States economy and not necessarily for other national economies.
(E) They overestimate the impact of the real interest rate on the national savings and investment rates.
Why E can't be answer for Question =3 ?
i rejected A because their belief was high rate of business savings in the United States is a necessary precursor to investment. They didn't take into account other factors that could vary rate. So it means they over emphasized the impact of real interest rate on the national savings and investment rates.
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