Answer:
Integrated marketing communications.
Step-by-step explanation:
Integrated marketing communication is a technique used by companies to create a linked form of communications and messages. Talking in simple terms, integrated marketing communications help firms to integrate their all promotional tools and ensure that all tools work in harmony with each other.
Nike is an example of a company using the technique of integrated marketing communications.
By using the slogan 'Just do it' in all of their promotional tools, the company is ensuring harmony in all of its tools.
Therefore, integrated marketing communications is the correct answer.