Unlike the revenue of the Bengal zamindars, the ryotwari revenue dema…

The correct answer is Option (1) → The lands were resurveyed every 30 years and the revenue rates increased

Option (1) The lands were resurveyed every 30 years and the revenue rates increased — Correct. In the ryotwari settlement the revenue was settled directly with the ryot. Because the land was resurveyed every 30 years and the rates raised, the demand could grow, so it was no longer permanent as in Bengal.

Option (2) The revenue was fixed every year according to the market price of grain — Incorrect. The rate was not tied to yearly grain prices. It was a share of the ryot's estimated paying capacity, fixed until the next survey.

Option (3) The revenue rose and fell each season with the state of the rainfall — Incorrect. Rainfall did not change the demand. When rains failed, peasants still had to pay, and collectors extracted payment with great severity.

Option (4) The revenue was raised whenever the ryot leased out his land to tenants — Incorrect. Leasing out land to tenants was the habit of Bengal zamindars who became rentiers. In the Deccan the ryot's rate went up at each resurvey.