World Bank's Ease of Doing Biz based on simple average (equally weighted) of 10 parameters viz. 1. Starting a Business 2. Construction Permits 3. Getting Electricity 4. Registering Property 5. Getting Credit (loan) 6. Protecting Minority Investors 7. Paying Taxes 8. Trading across Borders 9. Enforcing Contracts 10. Resolving Insolvency So, A is the answer.
