What is the native religion of Jeju Island?

A Taoism
B Hinduism
C Shamanism

Jeju Island is one of the few places where the Korean religion of Shamanism is most intact. Shamanism believes in the presence of multiple gods that interact with the living. Classified as a folk religion – associated with a particular ethnicity or group – spiritual rituals are typical attributes of the tradition.

The correct answer is Shamanism.