Air is compressed adiabatically in a steady flow process with negligible change in potential and kinetic energy. The work done in the process is given by:

• A. \[-\,\int{p\,\,dv}\]
• B. \[+\,\int{p\,\,dv}\]
• C. \[-\,\int{v\,\,dp}\]
• D. \[+\,\int{v\,\,dp}\]