The heat absorbed during a polytropic process is

• A. <img src="/_files/images/mechanical-engineering/thermodynamics/244-125-1.png">
• B. x Workdone
• C. <img src="/_files/images/mechanical-engineering/thermodynamics/244-125-2.png">
• D. <img src="/_files/images/mechanical-engineering/thermodynamics/244-125-3.png">
• E. all of these