Mercury Electric, a leading manufacturer of kitchen appliances, releases a new line of blenders called SpinPro. To boost sales, Mercury Electric gives scratch-and-win coupons to all buyers and provides a three-day trip to Hawaii for the winner. Which element of the promotion mix has Mercury Electric used in this scenario?
A) public relations
B) crowdsourcing
C) advertising
D) sales promotion
E) personal selling
Answer: D) sales promotion