If the ruling party uses government vehicles and buildings for its campaign, which core principle is weakened?

Correct answer: Equal electoral opportunity

Correct answer: B. Government vehicles and buildings are public resources, not the private property of the party currently in power. If the ruling party uses them for campaigning, it may gain visibility, mobility, convenience, and organisational advantages that competing parties do not receive. This creates an unequal field even if voters still cast secret ballots. B is correct because the principle of equal electoral opportunity requires parties to compete without unfair use of state resources. A is wrong: secret ballot concerns keeping each voter’s choice private. C is wrong: citizenship acquisition concerns legal membership of a country, not campaign resources. D is wrong: judicial review concerns the power of courts to examine legality, not equal campaign conditions. The issue is misuse of government machinery for partisan benefit. Memory cue: public resources must not become a party advantage.