Public opinion is important in that, it ________

Analyze the question: The stem asks why public opinion is important. So we need the option that states a positive function or value of public opinion, not a weakness or a problem.

Concept: Public opinion is the collective views, attitudes and feelings of citizens on government actions, policies and public issues. Its importance in a democracy includes:

• It guides government and parties in making and reviewing policies.
• It serves as a check on government, keeping leaders accountable.
• It lets leaders know whether citizens accept or reject their programmes.
• It helps parties adjust their manifestos and strategies before elections.

Step-by-step evaluation of options:

• A. Helps political parties to assess their policies: This is a real benefit. Parties read public feedback to see whether their policies are popular and work, then adjust them. ✔
• B. Creates delays in the execution of policies: This is a disadvantage, not an importance. ✘
• C. May be unreliable and misleading: This is a weakness or limitation. ✘
• D. Can be manipulated by political opponents: This is also a weakness or risk. ✘

Options B, C and D describe drawbacks or limitations. Only A describes a positive role, which matches the word "important" in the stem.

Exam tip: Always check the direction of the question. If it asks for the "importance" or "advantages" of something, eliminate the options that describe problems, such as "may be unreliable", "can be manipulated" or "creates delays". Doing this often leaves just one option.