During Page and Shapiro's Study, They Also Investigated the Link

During Page and Shapiro's study, they also investigated the link between public opinion and public policy. What was their finding?

A) The public expects its elected representatives to seek its opinion before developing public policy.
B) There is very little correlation between public opinion and public policy.
C) When public opinion shifts, a corresponding shift in public policy is likely to follow.
D) As public opinion is impossible to be accurately determined, public opinion cannot be impacted.
E) Divisive partisan politics have the impact of creating impasse, whereby public opinion becomes irrelevant to enactment of public policy.