Polls Are Sometimes Problematic Because They May

Polls are sometimes problematic because they may

A) reflect the effectiveness of an elected official or government policy.
B) silence members of the public who hold minority views.
C) influence rather than report public opinion.
D) both reflect the effectiveness of an elected official or government policy and silence members of the public who hold minority views.
E) both silence members of the public who hold minority views and influence rather than report public opinion.