Step 1: Context.
In medieval Indian history, foreign groups arriving from Central Asia and Persia were given distinct names depending on their origin.
Step 2: Analysis of terms.
- Turushka: A term often used in Sanskrit texts for Turks, not Persians.
- Tajika: Refers to people from Arab regions, not specifically Persians.
- Parashika: Derived from “Parash” (Persia), and used for Persians.
- None of these: Incorrect, since the correct term exists.
Step 3: Conclusion.
The Persians who came to India were referred to as Parashika.