A programmable logic array (PLA) is shown in the figure.
The Boolean function $F$ implemented is
- $\overline{P} \: \overline{Q}R+ \overline{P}QR+P \overline{Q} \: \overline{R}$
- $(\overline{P}+\overline{Q}+R)(\overline{P}+Q+R)(P+\overline{Q}+\overline{R})$
- $\overline{P} \: \overline{Q}R+\overline{P}QR+P \overline{Q}R$
- $(\overline{P}+\overline{Q}+R)(\overline{P}+Q+R)(P+\overline{Q}+R)$