The correct answer is A. Saint George
Step-by-step explanation
The Church of Saint George is located in the city of Lalibela in Ethiopia, this was created from a volcanic rock and it was carved into the shape of a cross during the 12th to 13th century AD, this church is part of a cluster of different churches aimed to represent Jerusalem, thus Saint George is a Christian church, specifically part of the Oriental Orthodox Christian Churches, which is a Christian community. In general, for Christianity, the cross is related to the death of Christ and thus an important symbol in the Christian world, which explains why this church was carved into the shape of a cross. On the other hand, Timbuktu is not located in Ethiopia but in Mali, which is a different country in Africa; Yordannos is located in Ethiopia but it was not carved into the shape of a cross and the Patriarch church is a type of church but no a specific church.