A and B are two events such that P (A) $\neq$ 0. Find P(B|A), if (i) A is a subset of B (ii) A $\cap$ B = $\phi$

Question

$\begin{array}{1 1}(i) 1 \quad (ii) 0 \\ (i) 0 \quad (ii) 1 \\ (i) 1 \quad (ii) 1 \\(i) 0 \quad (ii) 0 \end{array} $