The fact that "almost one－fourth of engineers in America who earned Ph.D. s are f

The fact that "almost one-fourth of engineers in America who earned Ph.D． s are foreign born" implies that（ ）

[A] the majority of American people are not interested in getting Ph.D．

[B]foreign students are more eager to get Ph. D．

[C] the American education has lagged behind in the New Economy

[D]American students are not as clever as foreign students