Let $X=\mathcal{P}(\mathcal{P}(\mathbb{R}))$ be the power set of the power set of $\mathbb{R}$, with topology generated by,

$$\{U_r\} \cup \{V_r\}$$

where,

$U_r = \{A\in X:r\in A\}:r\in\mathcal{P}(\mathbb{R})\}$

$V_r = \{A\in X: r\not\in A\}:r\in\mathcal{P}(\mathbb{R})\}$

Which of the following is(are) **TRUE**? Select **ALL** that apply: