Which of these cultural influences dominated under the Great Mughals?

a. Hindu

b. Persian

c. Mongol

d. Turkish

The official language of the Mughal empire and the language of the court and the elites was Persian: this is because the Mughals came from Persia (today's Iran). - so the correct answer is b). This also explains why their presence was more pronounced in North India: it's closer to Iran than South India.