. Which ONE excerpt below from Passage 1 BEST helps develop the idea that marketing plays an important role in product sales?

A“The Pet Rock’s creator, Gary Dahl, did not invent rocks, of course, but he did find a way to make people want to buy them.”
B“By using his skills as an advertising executive, he understood how to get people to buy something that they did not need and probably would not have ever thought of buying on their own.”
C“Dahl’s solution to this problem—invent a pet that never needed feeding, walking, bathing, or grooming, and would not die, become sick, or be disobedient, as with a real pet.”
D“Once he started selling his Pet Rock, the idea caught on. Within six months, he had made more than 15 million dollars.”

D“Once he started selling his Pet Rock, the idea caught on. Within six months, he had made more than 15 million dollars.”