Explanation:

- The forest cover in India as per the 2011 census is often discussed in context to environmental and developmental balance.

- These figures represent the percentage of land covered by forests in India.

- Option 1: 17.80% - This option suggests a relatively lower forest cover, which is not the figure recorded for 2011.

- Option 2: 22.07% - This is close to some figures reported in different contexts, but not the exact statistic for 2011.

- Option 3: 21.05% - This matches the reported forest cover percentage according to the 2011 census data.

- Correct Answer

- Option 4: 23.42% - This indicates a higher forest cover than recorded in 2011.