The train crash was due to a ..... of the engine-driver, and many people died because of his carelessness. (*) blunder (*) slip (*) misunderstanding (*) inaccuracy
This is a companion discussion topic for the original entry at https://english.best/questions/5645,the-train-crash-was-due-to-a-___-of-the-engine-driver-and-many-people-died-because-of-his-carelessness/