Emigration i think.........
D. Remained poor.
They experienced a period of economic stagnation following the independence. Making a lot of people remained poor despite being free from the European colonization. They need some time before they eventually make adjustments to implement a proper political system in place and develop their economy.
He wanted to create a new Roman Empire
The peak of the Ottoman Empire was the year 1683, when it had conquered a big portion of Europe and almost reached Vienna. The fact that it did not manage to conquer Vienna was the beginning of its demise.