What is the use of indelible ink in elections?

Correct answer: Prevent repeat voting

Direct answer: A, to prevent repeat voting. Indelible ink is marked on the voter as part of the polling procedure after the person votes or is recorded as having voted, according to the applicable rules. The visible mark helps polling staff identify that the person has already used the voting opportunity and discourages a second attempt at voting at another station or in the same election. Option A is correct because the mark supports the one-person-one-vote safeguard. Option B is wrong because its purpose is verification and prevention, not intimidation. Option C is wrong because ink is not a campaign message or political advertisement. Option D is wrong because changing candidates is unrelated to polling safeguards and is not a voter’s function. The ink alone cannot replace the electoral roll and other checks; it is one practical safeguard among several. Memory cue: indelible mark means voting already recorded, so repeat voting is discouraged.