Explanation:

- The Foreign Trade Policy has been designed to boost exports by focusing on various strategies.

- Option 1: Identified certain thrust areas for growth, which means it has recognized specific sectors that have high potential for export growth.

- Option 2: Started "served from India brand," indicating an initiative to showcase and promote India as a service export hub globally.

- Option 3: Started duty-free export credit, implying that exporters can access credit without import duties, making it easier for them to finance their operations.

Option 4: All of the above is correct, as the policy indeed encompasses all these aspects to enhance India's foreign trade.