In order to make a new product well known to the public, _________
A、a company should try the most effective way--direct selling.
B、salespeople must be well paid.
C、advertising it on television is the most effective way.
D、producers have various ways to choose from.
【正确答案】：D
【名师解析】:正确答案D表明，生产商在推广新产品时有多种选择。这包括直接销售、通过销售代表支付、电视广告等不同的策略。每个选项A、B和C分别代表了一种推广方式，但它们并不是唯一的选择。选项D强调了生产商在选择推广策略时的多样性和灵活性，这与题目中提到的"各种方式"相符合。因此，D是正确的答案，因为它涵盖了所有可能的推广方法，而不仅仅是单一的方式。
