Let $A = \{1, 2, \{3, 4\}, 5\}$. Which of the following statements are incorrect and why?
$1 \in A$
$1 \in A$
(N/A) Given the set $A = \{1, 2, \{3, 4\}, 5\}$.
The statement $1 \in A$ is correct because $1$ is an element of the set $A$.
The statement $1 \in A$ is correct because $1$ is an element of the set $A$.
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