(a) Is $\{ 5 \} \in \{ 1,3,5 \}$ ?
(b) Is $\{ 5 \} \subseteq \{ 1,3,5 \}$ ?
(c) Is $\{ 5 \} \in \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \}$ ?
(d) Is $\{ 5 \} \subseteq \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \}$ ?

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The Answer of (a) Is $\{ 5 \} \in \{ 1,3,5 \}$ ?
(b) Is $\{ 5 \} \subseteq \{ 1,3,5 \}$ ?
(c) Is $\{ 5 \} \in \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \}$ ?
(d) Is $\{ 5 \} \subseteq \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \}$ ?

(A) Is {5}∈{1,3,5}\{ 5 \} \in \{ 1,3,5 \}{5}∈{1,3,5} ? (B) Is

(A) Is $\{ 5 \} \in \{ 1,3,5 \}$ ?
(B) Is