Let A=1,2A = {1, 2}A=1,2 and B=3,4B = {3, 4}B=3,4. What is the Cartesian product A×BA \times BA×B?
(1,3),(1,4),(2,3),(2,4){(1, 3), (1, 4), (2, 3), (2, 4)}(1,3),(1,4),(2,3),(2,4)
(3,1),(4,1),(3,2),(4,2){(3, 1), (4, 1), (3, 2), (4, 2)}(3,1),(4,1),(3,2),(4,2)
(1,2),(3,4){(1, 2), (3, 4)}(1,2),(3,4)
1,2,3,4{1, 2, 3, 4}1,2,3,4