Question

Find power set of B = {0}

• A. {$\varphi$, B}
• B. {B}
• C. {$\varphi$}
• D. All of these

Answer 1

The correct option is A {$\varphi$, B}

Power set of any set B is a set of all subjects of B, including the empty set and B it self

Now $B=\left\{0\right\}$

power set of $B=\{\varphi ,B\}$.