Ans: (C,D)
Hint \(: P\left(A^{\prime} \cap B^{\prime}\right)=\frac{3}{5}\)
$$
\Rightarrow 1-P(A \cup B)=\frac{3}{5}
$$
$$
\begin{aligned}
&\Rightarrow P(A \cup B)=\frac{2}{5} \\
&\Rightarrow P(A)+P(B)-P(A) \cdot P(B)=\frac{2}{5} \\
&\Rightarrow P(A)+P(B)=\frac{9}{20} \text { and } P(A) \cdot P(B)=\frac{1}{20}
\end{aligned}
$$