JAMB - Government (1990 - No. 36)
The most effective way of monitoring public opinion is
by examining the questions asked by journalists
by the frequency of the press releases of pressure groups
by referendum
through opinion poll
Explicação
An opinion poll is the most effective way to monitor public opinion because it systematically collects and analyses the views of a representative sample of the population on various issues. This method provides measurable, data-driven insights into public sentiment.