Answer:
They celebrate the liturgy, soooo I think B (sacraments)
The country that unified its eastern and western regions on October 3, 1990 is Germany.
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.
Climate should be a good factor