A: The 2 main religions are Shinto and Buddishm
Shinto and Buddhism.
   
Note three provisions in japans new constitution
buddism
Japanese
If you mean Taoism, then one of the other religions is Budhaism.
Judaism, Christianity and Islam
Judaism, Christianity, & Islam.
jewish, christian, and islamic
Islam, Buddhism, Catholicism.
They have three main religions Christianity, Islam, and African religion.