Priests in most Catholic churches, such as those in the United States, face east toward the holy city of Jerusalem. Why do the churches in the town of Potosi face south toward Cerro Rico?

Question

so that parishioners can more safely enter the church
so that the breeze from the mountains enters the church
so that the silver mines can be blessed from the altar
so that the priest can better see the congregation

is it b?

Answer 1

wait, I think it's c

Answer 2

it's c