Which of the following are CORRECT statements regarding natural and legal barriers to market entry? Select ONLY THOSE THAT APPLY. Select 2 correct answerts) A) Firms in monopolistic compatition produce slightly differentialed products, B) A monopoly firm is the supplier of a good for which there are many substitules, C) Firms in Oligopolistic market structures can produce either identical or differentiated producis D) A monopoly firm is a price taker in the market