Read the passage and answer the question:

Al-Biruni was born in 973, in Khwarizm in present-day Uzbekistan. Khwarizm was an important centre of learning, and Al-Biruni received the best education available at the time. He was well-versed in several languages: Syriac, Arabic, Persian, Hebrew, and Sanskrit. Although he did not know Greek, he was familiar with the works of Plato and other Greek philosophers, having read them in Arabic translations. In 1017, when Sultan Mahmud invaded Khwarizm, he took several scholars and poets back to his capital, Ghazni; Al-Biruni was one of them.

By giving an example of which country did Al-Biruni attempt to suggest that social divisions were not unique to India?

Ancient Persia

The correct answer is Option 3 - Ancient Persia

Al-Biruni tried to explain the caste system by looking for parallels in other societies. He noted that in ancient Persia, four social categories were recognised: those of knights and princes; monks, fire-priests and lawyers; physicians, astronomers and other scientists; and finally, peasants and artisans. In other words, he attempted to suggest that social divisions were not unique to India. At the same time he pointed out that within Islam all men were considered equal, differing only in their observance of piety.