The correct answer is option 3: Persian. The term `India` is derived from the Persian word `Hind` or `Hindustan`. This word was used by the Persians to refer to the region that corresponds to present-day India. The Persians had a significant influence on the region, especially during the medieval period, and their language had a strong impact on the local vocabulary. Over time, the name `India` evolved and was adopted by other languages, including English. While English may be the language in which the word `India` is commonly used today, it is important to understand its origins in the Persian language.