In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
Being a well know scientist,(A)/he was invited to deliver(B)/a lecture on artificial intelligence.(C)/No error(D)
Match the characteristics with their market structure: (a) Firm has control over quantity of output but it must take into account reactions of competitors. b) Firm will tend to set output so that it earns maximum profits.