Gustaves Electronics Are a Leading Brand in Kitchen Appliances

Gustaves Electronics are a leading brand in kitchen appliances.Recently,the company released a new line of blenders called Amalgee.But the sales of Amalgee did not meet the expected figures.To boost sales,Gustaves decided to give scratch-and-win coupons to all buyers,with a chance to win a three-day trip to the Carribean for the lucky buyer.Which of the following elements of the promotion mix did Gustaves utilize to boost Amalgee's sales?

A) public relations
B) crowdsourcing
C) advertising
D) sales promotion
E) personal selling