Answer:
b. Advertising promotional activity
Explanation:
Advertising promotional activity -
Promotional activity is employed , in order to publicize about the goods and services produced by a company or firm , is referred to the method of promotional activity .
The promotional activity can be done by various methods , like television , radio , newspaper etc .
Advertising promotional activity , is the most common and one of the cheapest form of promotional activity , which is done with the help of online as well as offline platform , like newspaper , websites , ,magazines etc .
Hence , from the given scenario of the question ,
The correct option is b. Advertising promotional activity .