Assertion (A): If A={1,2,3},B={2,4}, then the number of relation from A to B is equal to 64 .
Reason (R): The total number of relation from set A to set B is equal to {2ⁿ(A)ⁿ(B)}.

a. Both A and R are true and R is the correct
b. Both A and R are true but R is not the explanation of A. correct explanation of A.
c. A is true but R is false.
d. A is false but R is true.