That is because earth spins towards the east.
Answer:
Language, age, religion, & race
Hey there! I'm happy to help!
Right off the bat we can eliminate Buddhism and Hinduism because they were created in Asia and are their own religious branches. They are not a combination of any two religions.
The three main branches of Christianity are Catholicism, Protestantism, and Orthodoxy. Eastern Orthodoxy is its own religious branch that was formed in around Southeastern Europe. Since Orthodoxy and Catholicism are two different branches of Christianity, they would not mix to create a new South African religion.
This leaves us with Macumba. I've never heard of it but we figured it out using process of elimination. And it sounds pretty African too so it makes sense!
Have a wonderful day! :D