Answer:
Option B
Explanation:
Heat is extracted from the source means heat is given to the system ( or gas) . or Q is positive . This is positive only along the path ABC
Heat supplied
∴ QABC=△UABC+WABC
= nCV(Tf -Ti)+ area under p-V graph
=n(32R)(Tc−TA)+2p0V0
=32(nRTc−nRTA)+2p0V0
= 32(pcVc−pAVA)+2p0V0
= 32(4p0V0−p0V0)+2p0V0
= 132p0V0