Concept:Passive electioneering is the silent display of campaign materials such as badges, T-shirts, or signs near a polling centre to influence voters.
Explanation:When a person wears campaign paraphernalia or carries signs to a polling centre, the act is meant to persuade voters without using words.
It is called passive electioneering because it involves visual support rather than direct soliciting of votes.
It differs from active campaigning, which involves speeches or direct appeals.
The definition given in the question clearly matches passive electioneering.
None of the other options, such as "polling centre" or "electorate," describe this action.
Answer:C. passive electioneering