Ah, gotcha. No worries about being mean, it’s not, and I need to prepare!
So something like
A: An ethnic religion is Hinduism.
B: Hinduism is primarily practiced in India. As an ethnic religion, it has stayed near its hearth of the Indus River Valley as opposed to universalizing religions which diffuse on a global scale.
C; Both Islam and Buddhism are universalizing religions and are practiced all across the world rather than solely staying in their hearths. Although both religions are found globally, Islam is particularly prevalent in Northern Africa as well as the Middle East, while Buddhism is especially common Southeastern Asia.
D; Islam is a universalizing religion and has diffused around the world through both hierarchical and expansion diffusion. Merchants selling goods would inform their customers that Islam allowed them ot be so prosperous. This is an example of hierarchical diffusion as the merchants in higher societal roles spread the word to regular, less influential citizens. Islam additionally spread via expansion diffusion as the founder Muhammad waged holy wars on the neighboring lands, conquering them and bringing Islam to new nations.