Para jumbles — quick quiz

The sentences below, labelled A to D, form a paragraph when put in the right order. Choose the most logical order. A. This is why many cities now publish their bus timetables as open data. B. A bus that arrives on time is useful only if passengers know when it will arrive. C. Once the data is public, app developers can build journey planners that no transport department would have paid for itself. D. Yet printed timetables at bus stops are often torn, faded or out of date.