Karan works as an advertising executive in his company. He has been asked to evaluate the company’s previous advertisement campaigns in order to create a new advertising plan. Karan has to analyze the sales and how much the advertising discount promotions affected these sales. Which evaluation tools can Karan use for his work?
Karan should use the ________ to analyze the sales and ________ to analyze the effect of advertising promotions on sales.

first one
a.sales structure
b.sales pitch
c.sales report

second one
a.coupon tracking
b.advertising meter
c.promotions report