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# Let $A=\{1,2,\{3,4\},5\}$.Which of the following statements are incorrect and why? $\{1,2,3\} \subset A$

$\begin{array}{1 1}(A)\;\text{Correct}\\(B)\;\text{Incorrect}\end{array}$

Some element of set $\{1,2,3\}$ is not present in set A
$\therefore$ The given statement is incorrect.
Hence (B) is the correct answer.