Answer
$1.875V_0p_0$ = 75 J
Work Step by Step
The work done is the area under the curve. For path B, this is $3V_0 * (0.25p_0+p_0)/2$ = $1.875V_0p_0$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.