Answer
The Boolean expression for this is
$\overline{a} \cdot \overline{b} \cdot \overline{c}+a \cdot b \cdot c$
Pictorially, the corresponding circuit diagram is
Work Step by Step
The Boolean expression for this is
$\overline{a} \cdot \overline{b} \cdot \overline{c}+a \cdot b \cdot c$
Pictorially, the corresponding circuit diagram is