According to the text, the early warnings about smoking and the early warnings about global warming were similar because______.
A．both were dismissed at first by those with vested interests
B．both ignored the underlying problem
C．both failed to receive public support
D．both were successful in the end

A.
A．both
B.both
C.both
D.both

【参考答案】

A
属逻辑关系题。第三段首先指出，两种警示有类似之处，后又提到，两者都受到既得利益者的否认。