Answer: Coupon Direct Mail
Explanation:
From the information on the dashboard, Kai should invest in Coupon Direct Mail as a means of promoting the business. With this method, Kai attracts the highest number of clients at 150 per month which is larger than the other two methods.
Kai will also make the highest amount of profit of $2,000 using this method even after the costs of this method have been accounted for. The best option for Kai therefore is to use the Coupon Direct Mail promotional marketing effort.
