Answer:b. a relatively large number of producers offering similar but differentiated products.
Step-by-step explanation:
What is Monopolistic Competition?
Monopolistic competition refers to all those industries that offer similar items but which are not the substitute of each other. It is easy to get into this type of industry as much as it is also easy to leave the industry and they don't affect each other in any direct way. It is more related to brand differentiation because one can only tell them apart from the brand names.
They rely more on heavy advertising
The examples of monopolistic competitors are restaurants,clothing shops, electronics shops and hair salons. The only thing that can make each survive is to try make some distinct features on their product which can set them apart from other similar products or services.