Which skill set is required to be a good marketer?

$$Understanding algebra and calculus

$$Experience in professional sales

$$A high degree of creativity $.$

$$Basic math skills$$You are having a discussion with your cousin, Thomas, about your university courses. You tell him that your favorite course is Marketing. Thomas replies that marketing is easy because companies simply make a product available at a low price and customers will buy it$.$ Which misconception of marketing applies to this situation? Pick one

$-$Marketing makes people buy things they don't need.

$-$Marketing is equivalent to sales or advertising.

$-$Marketing is an art, and you either have the gift or you don't.