If the ruling party takes electoral advantage from government resources, which principle weakens?

Correct answer: Electoral fairness and equal opportunity

The correct answer is A: electoral fairness and equal opportunity weaken when the ruling party uses government resources for electoral advantage. Public resources belong to the state and are meant to serve citizens, not to give the governing party an unfair campaign benefit. If official machinery, public money, facilities, or authority are used to favour one party, other candidates cannot compete on reasonably equal terms. This can influence voters and reduce trust in the election. A is correct because the central issue is unequal competition. B is wrong because misuse of resources does not change the legal age for voting. C is wrong because it does not directly describe the secrecy of a ballot. D is wrong because it does not primarily concern the physical distance to a polling booth. Memory cue: public resources must serve the public, not one party's campaign.