Each element of an integrated marketing communication (IMC)strategy must have a well-defined purpose and support, and extend the message delivered by all the other elements.

This statement is true as it is a fundamental concept in IMC. Each element such as advertising, public relations, personal selling, direct marketing, and social media should work together in a cohesive manner to achieve a common goal and enhance the overall effectiveness of the campaign. The message should be consistent across all channels to create a holistic brand experience for the target audience.