单选题 Questions concerning shipping costs of delivery times should be directed to the ______, not the manufacturing firm.
A. distribution B. distribute C. distributor D. distributing

【正确答案】 C
【答案解析】[解析] 根据空格前的定冠词the可以知道，此题为选择恰当的名词的问题。分析句意，空格处需要和manufacturing firm相对应的词汇，因而意为“供应商，供应企业”的distributor为正确答案。