Explanation:

- The Global Business Summit is a prestigious event that gathers top business leaders, policymakers, and influential thinkers to discuss and ideate on the global economy.

- Option 1: Bengaluru - Known as the tech hub of India, but not the location for the 2019 summit.

- Option 2: New Delhi - The capital of India, and the host city for the Global Business Summit 2019.

- Option 3: Jamnagar - An industrial city in Gujarat, not the host for this summit.

- Option 4: Mumbai - The financial capital of India but was not the choice for this particular summit.