1 . what is the Cartesian product of A ={ 1,2} and B = { a,b } ?

• A. {(1,a),(1,b)(2,a)(b,b)}
• B. {(1,1),(2,2),(a,a),(b,b)}
• C. {(1,a),(2,a), (1,b), (2,b)}
• D. {(1,1),(a,a),(2,a),(1,b)}

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Answer: Option C

Explanation: