In which two market structures are prices set mainly by the supply and demand of many buyers and sellers? a. monopoly and oligopoly
b. oligopoly and perfect competition
c. monopoly and monopolistic competition
d. perfect competition and monopolistic competition

This question is an opinionated one, and we don’t know anything about the module or anything, thus we can not answer it. but if you are having trouble on what it is asking basically it is just asking to (using your knowledge on the topic) say which topics you were most interested and which were the most challenging.hope this : p