Questions 172~175 refer to the following news story. 
David Thompson was a humble market vendor in Sunderland, UK. One day, while he was selling his fresh produce, a talent scout noticed his friendly personality and unique style of selling his goods. The talent scout offered him a role in a leisure food advertisement that turned out to be a massive hit, making David an overnight sensation. 
Following his success in the advertisement, David was invited to join a popular reality show as a regular cast member. His humorous and outgoing personality quickly won the hearts of the audience, and he became one of the most beloved members of the show. 
However, things took a sour turn when David responded harshly to a negative comment on his social media page, which resulted in a massive backlash from his fans. Many viewers criticized him for his disrespectful behavior, and the producers of the reality show decided to replace him with another cast member.
Feeling ashamed and embarrassed by his actions, David decided to take a break from the limelight and returned to his hometown to reflect on his behavior. Despite the setback, he continued to run his market stall, where he enjoyed interacting with the local community and selling his fresh produce. In time, he regained the trust and support of his fans, and he even started a charity program to help those in need.
【題組】172.What did the talent scout notice about David Thompson?
(A)His unique selling style.
(B)His high-quality produce.
(C)His low prices.
(D)His small market stall.