Melissa, a salesperson for a cosmetics company, is selling the company's new range of antl$-$acne products. While selling to prospectlve custorners she explains how one of her previous customers was hesitant to buy the product initially but was very happy with the results when she finally gav the product a try. In this scenario, Melissa is using the of earning commitment.

A$.$ summary commitment technique

B$.$ probing commitment technique

C$.$ success story commitment technique

D$.$ balance sheet commitment technique

E$.$ alternative choice commitment technique