A) {(1, 2), (1, 5), (2, 5)}
B) {(1, 4)}
C) (1, 4)
D) None of these
Correct Answer: B
Solution :
\[A-B=\{1\}\] and \[B-C=\{4\}\] \[(A-B)\times (B-C)=\{(1,\,4)\}\].
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