单项选择题

From the passage, we can learn that American people hold a (n) ______ attitude towards the upward trend of interracial birth.
A) supportive C) indifferent
B) negative D) opposing

A.From the passage, we can learn that American people hold a (n) ______ attitude towards the upward trend of interracial birth.
B.supportive
C.negative
D.indifferent
E.opposing