Explanation:

- Option 1: Saving Lives and Livelihoods: This theme emphasizes balancing health measures with economic support during crises. It's a crucial focus but not the specific central theme of the Economic Survey 2021-22.

- Option 2: Agile Approach:

This approach promotes flexibility and adaptability in policymaking, highlighting how quick responses to changing circumstances can drive better outcomes. The 2021-22 Survey indeed emphasized this method for dealing with economic challenges.

- Option 3: Pro-Business: This stance supports an environment conducive to business growth and investment, important for economic progress but not the central theme for this specific Economic Survey.

- Option 4: Digital Transformation: This acknowledges the role of technology in enhancing economic operations, vital for development but not the highlighted theme in this context.