When the Campbell Soup Co. introduced its new Slow Kettle Style Soups, its advertising touted restaurant-quality soup with authentic ingredients and unique flavors available at the grocery store. What type of product advertisement was it most likely using in its ads

pioneering advertising

Explanation:

When a company is launching a new product category, it will generally use pioneering advertising because it is advertising some type of innovation which is different than other competing products. In this case, even Campbell's normal soups cannot be compared to the Slow Kettle Style Soups.

Pioneering advertising is used to promote totally different products and concepts, than supposedly consumers had never seen before.