Detailed Explanation:

Answer: Option 3 — Any citizen of India whose name appears in the electoral roll of a constituency.

According to Article 84 of the Indian Constitution and the Representation of the People Act, 1951, to file a nomination paper for Lok Sabha elections, a person must be a citizen of India, at least 25 years of age, and their name must be enrolled in the electoral roll of any parliamentary constituency in India. The candidate need not be a resident of the constituency from which they wish to contest; they can contest from any constituency as long as they are registered as a voter somewhere in India. This ensures that only registered voters with a stake in the electoral process can contest elections.