Answer:
Option B
Explanation:
Let S: $(\sim p\wedge q)\vee(p\wedge \sim q)$
$\Rightarrow$ $\sim S=[(\sim p\wedge q)\vee(p\wedge \sim q)]$
$\Rightarrow$ $\sim S=\sim (\sim p \wedge q)\wedge \sim(p \wedge \sim q)]$
$\Rightarrow$ $\sim S=( p \vee \sim q)\wedge \sim(\sim p \vee q)$