All of the given responses are correct. They all highlight key ways in which economic reforms in Turkey in the late 1900s improved the Turkish economy.
1) Making it easier for people to start new businesses and form private companies encouraged entrepreneurship and increased competition, leading to innovation, job creation, and economic growth.
2) Investing in government projects injected money into the economy, stimulating various industries and sectors. Large infrastructure projects, such as the construction of roads, bridges, and airports, created employment opportunities and boosted economic activity.
3) Joining the European Union expanded trade markets for Turkey. This allowed Turkish businesses to access larger consumer bases, export their products to European markets, and attract foreign direct investment. The increased trade and investment contributed to economic growth and development.
4) Expanding oil production increased the supply of oil and generated additional revenue for the industrial sector. This helped to reduce Turkey's dependence on oil imports and supported its energy needs, boosting the country's self-sufficiency and economic stability.
Overall, these economic reforms helped to modernize and diversify the Turkish economy, promote economic development, attract foreign investment, increase trade, and create jobs and opportunities for the Turkish people.