An Example of One Effect of Integration of Advertising and Personal

An example of one effect of integration of advertising and personal selling would be

A) salespeople cold canvass to find interested prospects, then ask them to watch a videotape advertising their product.
B) an advertisement gives a toll-free number where customers can call to place their order.
C) a commercial on television promises a satisfaction guarantee on their product to potential customers.
D) advertising is used to generate sales leads, which are then turned over to the salesforce to close the sale.
E) qualified customers are located through the company's directories and then called on by the salesforce.