Find the Cartesian product or cardinal number as requested.Write {(k, 3), (k, 4), (j, 3), (j, 4)} as a Cartesian product.

A. {k, 3} × {j, 4}
B. {k, j} × {3, 4}
C. {k, j, 3, 4} × {1}
D. {3, 4} × {k, j}


Answer: B

Mathematics

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