Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, mark ‘No error’ as your answer (Ignore the errors of punctuation, if any). The new household brand names of the cyber era have not /replaced good policy work, messaging and /organisation but they have become essential components/ of the execution of them in the campaign.