【名词&注释】
生产经营(production and management)、不一致(inconsistency)、抵押物登记(gage registration)、借款人(borrower)、流动资金贷款(working capital loan)、主合同(master contract)
[单选题]定金一般不超过主合同(master contract)标的()。
A. 10% B. 20% C. 30% D. 50%