Explanation:

- The statement mentions Finance Minister Nirmala Sitharaman's announcement about additional fertilizer subsidy due to rising global prices.

- The government aims to support farmers by adjusting the subsidy amount to mitigate price increases.

- Option 1: Rs 1.15 lakh crore - This seems lower than expected given additional subsidies.

- Option 2: Rs 1.50 lakh crore - Also seems insufficient in the context of increased subsidies.

- Option 3: Rs 3.15 lakh crore - This amount seems excessively high for the stated context.

- Option 4: Rs 2.15 lakh crore - This is a plausible number aligning with the context.

- Option 5: None of the above - Not applicable as a correct option exists.