Let (( vec{V} Delta t). vec{ds} ) be the change in volume of elemental control volume in time t. Over the same time t, what is the change in volume of the whole control volume V with control surface S?

• A. ( int( vec{V} Delta t). vec{ds} )
• B. ( vec{V} Delta t )
• C. ( sum( vec{V} Delta t). vec{ds} )
• D. ( iint_s( vec{V} Delta t). vec{ds} )