Merchants and migrants first brought the teachings of the holy Quran to India in the __________ century.

Correct option is B

Merchants and migrants first brought the teachings of the Holy Quran to India in the 7th century.
Some facts: Islam is India's second-largest religion, with 14.2% of the country's population, and approximately 172.2 million people. (According to the 2011 Census).
India is also the country with the third-largest number of Muslims in the world.
Islam arrived in the Indian subcontinent in the 7th century when the Arabs conquered Sindh and later arrived in Punjab and North India in the 12th century via the Ghaznavids and Ghurids conquest.