Primary advertising is usually financed by ________.

Primary advertising is usually financed by ________.
A、individual retailers
B、individual manufacturers
C、a particular advertising agent
D、a particular marketing cooperative
【正确答案】：D
【题目解析】：Primary 主要的 ; 最重要的 ;financed 提供资金 ; finance的过去分词和过去式；marketing cooperative 营销合作社，初级广告通常由一个特定的营销合作社提供资金。