题目内容：
请在（4）处填写正确答案。
A．that have favorable overtones for the company initiated by the public relations department B．not all publicity is initiated by the firm
C．usually in the form of press releases or press conferences
D．such as its product quality, the servicing and handling of complaints, and the tenor of the advertising
E．what it means to the company is public relation
F．Although the basic purpose of public relations is to provide positive influence on the public image
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