Explanation:

- Option 1: Ban all microfinance enterprises

- Banning would remove credit access for millions, which is essential for small business growth and personal emergencies.

- Option 2: Enact a law to regulate and nationalize them

- This step ensures oversight on interest rates and practices, protecting borrowers and maintaining access to credit.

- Option 3: Ask them to pay compensation

- Offering compensation could provide immediate relief but doesn’t prevent future exploitation or address systemic issues.

- Option 4: Appoint a committee to see the issue

- While this allows for detailed study, it might delay urgent required actions against ongoing malpractices.