Each of the following sentences has been divided into five parts (a), (b), (c), (d), and (e) . One of these parts may contain a grammatical or usage error. Identify the part that contains the error. If the sentence is correct, choose Option (e) – No error.  Professionals who constantly criticise others (a) / often fail to recognise the flaws in themselves (b) / and rarely question whether their own decisions (c) / have harmed the organisation itself (d). / No error (e)