Zamindars were actually a group of people created by the Britishers and they were made responsible for the task of collecting land revenues from land tenants and then paying that amount to british officers. By performing this duty the zamindars get a portion of amount collected by them as commission. So, option 'D' is correct.

Zamindars were responsible for paying revenue to the Company.

Explanation:

1. Introduction:
Zamindars were a class of landowners in colonial India who held significant power and authority over their estates. They were responsible for collecting revenue from the peasants who worked on the land and played a crucial role in the British colonial administration.

2. Role of Zamindars:
The primary responsibility of zamindars was to collect revenue from the peasants. They acted as intermediaries between the British East India Company and the local population. The revenue collected by the zamindars was then paid to the Company.

3. Revenue Collection:
Zamindars were responsible for assessing the land and determining the amount of revenue to be paid by the peasants. They maintained detailed records known as "bahi khatas" which contained information about the landholdings, crops grown, and the amount of revenue to be collected.

4. Relationship with the British:
Zamindars had a symbiotic relationship with the British. They were granted extensive powers and privileges by the Company in exchange for their loyalty and cooperation. The zamindars acted as agents of the British administration and ensured the smooth collection of revenue.

5. Importance of Revenue:
The revenue collected by the zamindars was crucial for the functioning of the British colonial administration. It provided a steady source of income for the Company and helped finance its various activities, including the maintenance of the army, infrastructure development, and administrative expenses.

6. Impact on Peasants:
The revenue collection system imposed by the zamindars often burdened the peasants who were forced to pay high rates of revenue. This led to widespread exploitation and impoverishment of the rural population.

7. Changes in Zamindari System:
Over time, the zamindari system underwent changes with the introduction of permanent settlement and the gradual decline of the zamindars' power. However, during the early colonial period, the zamindars played a significant role in revenue collection and maintaining the economic interests of the British East India Company.

In conclusion, zamindars were responsible for paying revenue to the British East India Company. They played a crucial role in the revenue collection system, acted as intermediaries between the Company and the peasants, and maintained detailed records of landholdings. The revenue collected by the zamindars was essential for financing the activities of the colonial administration.