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 company’s profits have steadily (1) / risen over the past few years, (2) / enabling it to invest in (3) / new technologies and expand their operations. (4) / No Error (5)