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 idiomatic error. Identify the part that contains the error. If there is no error, choose option (e). If the authorities had acted promptly (a), the damage caused by the floods (b) would have been minimized (c), and many lives were saved (d). No error (e)