【单选题】
Where normal delivery at the port of destination is prevented by some cause beyond the control of the master,and the master may and must deal with the cargo for the benefit of its owners by landing it,carrying it,or transshipping it,as may seem best,the Shipowner may then charge the cargo owners with()to cover the expenses thus incurred in their interests.
A、pro rata freight
B、advance freight
C、dead freight
D、back freight