Q16

MCQ1 mark, −0.33

For a set $A$ , the power set of $A$ is denoted by $2^{A}$ . If $A = \left\{5,\left\{6\right\}, \left\{7\right\}\right\}$ , which of the following options are TRUE? I and III only II and III only I, II and III only I, II and IV only

(A)

$\varnothing \in 2^{A}$

(B)

$\varnothing \subseteq 2^{A}$

(C)

$\left\{5,\left\{6\right\}\right\} \in 2^{A}$

(D)

$\left\{5,\left\{6\right\}\right\} \subseteq 2^{A}$

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