Which of the following factors has helped improve Bangladesh's economy in recent years?

Some of the factors that have helped improve Bangladesh's economy in recent years include:

1. Increase in exports and remittances: Bangladesh has seen a steady growth in exports of garments and textiles, as well as an increase in remittances from Bangladeshi workers overseas, which has boosted foreign currency reserves and improved the country's balance of payments.

2. Investments in infrastructure: The government has made significant investments in infrastructure projects such as roads, ports, and power plants, which have helped to improve connectivity, attract foreign investment, and spur economic growth.

3. Stable political environment: Bangladesh has experienced relative political stability in recent years, which has helped to create a conducive environment for business and investment.

4. Growth of the middle class: The growth of the middle class in Bangladesh has led to increased domestic consumption, which has helped to drive economic growth.

5. Investment in human capital: The government has made investments in education and healthcare, which have helped to improve the skills and productivity of the workforce.

6. Diversification of exports: Bangladesh has made efforts to diversify its export base beyond garments and textiles, which has helped to reduce the country's dependence on a single sector and increase resilience to external shocks.