Direction: In each of the following questions, choose the most appropriate sequence of sentences from the given choices.
(i) European authorities said that if China opened its market to European goods, the return journey could also be full. (ii) A new freight train linking Harbin city of china to Germany's Hamburg was launched recently. (iii) It will travel through Russia and Poland and will transport Chinese goods to Europe, but will bring back little. (iv) The train will cover almost 10,000 kilometers and complete the journey in 15 days.