Questão de Língua Inglesa

Which option completes the text below correctly? A Beijing company has unveiled spectacularly futuristic designs for a pollution-busting, elevated bus [... ] Song Youzhou, the project's chiei engineer, claimed the busses could be produced for 20% of the price of an underground train and rolled out lar more quickly since the ___ infrastructure was relatively simple. The project has been greeted with ___ in China, where traffic jams have grown as the country ___ the United States to become the largest car market on earth in 2009. However, ___ over the ___ was tempered by the fact that a virtually identical contraption was unveiled at lhe sarne expo in 201 Owithout catching on. lts ___? A Chinese engineer by the name of Song Youzhou. (Adapted from https://www.ltheguardian.com)