HELLO,
![](https://www.sarthaks.com/?qa=blob&qa_blobid=3506811787837794486)
For cyclic process net work done is area under PV diagram
So, here ABC is right angled triangle
Area = \(\frac{1}{2}*AB*AC\)
\(AB=4P_1-P_1=3P_1\)
\(AC=3V_1-V_1=2V_1\)
NET WORK DONE = \(\frac{1}{2}*3P_1*2V_1=3P_1V_1\)
HENCE, THE CORRECT OPTION IS A
I HOPE YOU WILL UNDERSTAND.![smiley smiley](https://www.sarthaks.com/qa-plugin/wysiwyg-editor/ckeditor/plugins/smiley/images/regular_smile.png)