The correct option is D Persia
Zoroastrianism is an ancient pre-Islamic religion of Iran. The descendants of Zoroastrian Iran (Persia) immigrants are known as Parsis. Zoroastrianism was the state religion of three Persian dynasties, until the Muslim conquest of Persia in 7th century AD. Zoroaster is regarded as the founder of the religion. Many Parsis escaped Muslim persecution in Iran by emigrating to India.