Examples of the four most common and effective promotional techniques used marketing include advertising, direct marketing, telemarketing, and _____.%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0Aprice increases%0D%0A%0D%0Aprice increases%0D%0A%0D%0Aword of mouth%0D%0A%0D%0Aword of mouth%0D%0A%0D%0Apublic relations%0D%0A%0D%0Apublic relations%0D%0A%0D%0Aosmosis

The answer is "public relations".