Which of these religions is the oldest?

a: greek orthodox
b: islam
c: roman catholic
d: none of the above

A: Greek Orthodox
B: Islam
C: Roman Catholic
D: none of the above

Greek orthodox was around since 33 AD.

Islam was around 610 AD.

Roman Catholicism was around since the late first century.

Since the Greek orthodox was around in the early first century, that religion is the oldest.

Have a nice day! :)

Yes all of them are right