In which way do producers try to differentiate themselves in monopolistic competition? price advertising product features image

I believe the answer is: Product features

Product features refers to the components, apperances, and capabilities of a certain product that distinguish one product over another.
Such features are the only mean to stand out in a monopolistic market because competing with the dominant company in term of pricing is impossible.

I think the correct answer from the choices listed above is the third option. It is through product features that producers  try to differentiate themselves in monopolistic competition. Monopolistic competition is that when many producers sell products that are differentiated from one another.

Is there not a question though?