我方出口大宗商品,按CIF新加坡成交,合同规定采用租船运输,如我方不想负担卸货费用,我方应采用的贸易术语变形是?A. CIF Liner Terms SingaporeB. CIF Landed SingaporeC. CIF Ex Ship’s Hold SingaporeD. CIF Ex Tackle Singapore