Explanation:

- Option 1: RBI (Reserve Bank of India)

- Primarily deals with monetary policy, banking regulations, and financial stability.

- Option 2: SEBI (Securities and Exchange Board of India)

- This is the correct answer. SEBI is responsible for regulating securities markets. It looks after investor protection and fair practices, which makes it likely to regulate finfluencers.

- Option 3: NABARD (National Bank for Agriculture and Rural Development)

- Focuses on agriculture and rural development.

- Option 4: SIDBI (Small Industries Development Bank of India)

- Aims at promoting and financing micro, small, and medium enterprises (MSMEs).

- Option 5: FSSAI (Food Safety and Standards Authority of India)

- Regulates food safety standards in India.