Let X and Y be the sets of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then, n (X ÇY) is equal to

Let X and Y be the sets of all positive divisors of 400 and 1000 respe

1.	Let X and Y be the sets of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then, n (X ÇY) is equal to
A.	4
B.	6
C.	8
D.	12
Answer» E.