保险条款的英文表达 — 国际贸易选择题

某出口商致函保险公司，拟说明：请为该批货物按发票金额加两成投保战争险。下列哪项英文表达最规范？ A. Please cover War Risk on the shipment for 120% of the invoice value. B. Please cover War Risk on the shipment for 110% of the invoice value. C. Please cover the invoice value for War Risk at 120% of the shipment. D. Please insure invoice value 200% against War Risk on the goods.