If $A = \{x, y\}$ then the power set of $A$ is
If $A = \{x, y\}$ then the power set of $A$ is
- A
$\{ {x^x},\,{y^y}\} $
- B
$\{ \phi,x, y\}$
- C
$\{\phi, {x}, {2y}\}$
- D
$\{\phi, x, y, \{ x, y \} \}$
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