Assertion(A): Today, barring the North-Eastern states, there are no areas of the country that are inhabited exclusively by tribal people.
Reason (R): Since the middle of the nineteenth century, non-tribals have moved into the tribal districts of central India, while tribal people from the same districts have migrated to plantations, mines, factories and other places of employment.
a) A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false.
d) A is false and R is true.
