Professional advetising in order to enhance competition on thebasis of price a. restrict advertising in order to reduce competition on thebasis of price. b.restrict advertising in order to reduce competition on thebasis of price c.encourage advertising in order to reduce competition on thebasis of price d.encourage advertising in order to enhance compettin on thebasis of price Professional advetising in order to enhance competition on thebasis of price a. restrict advertising in order to reduce competition on thebasis of price. b.restrict advertising in order to reduce competition on thebasis of price c.encourage advertising in order to reduce competition on thebasis of price d.encourage advertising in order to enhance compettin on thebasis of price