In Metroville, the KP subway line follows the riverfront from downtown to the neighborhoods surrounding the university. No matter how many trains the subway runs on the KP line, there are always congestion and delays on the KP line. The subway submitted a proposal for an alternate subway line that would travel from downtown to the neighborhoods surrounding the university via the inland neighborhoods, hoping to draw some of the congestion from the KP line. The city hired urban planning consultants who concluded the subway' s proposal of a new line would not reduce commuter congestion on the KP line. Which of the following, if true, most helps to explain the urban planning consultants' position? ['The most popular after-work destinations, such as riverfront restaurants and bars as well as the ballpark, would only be accessible by the current KP line.', 'Construction of a new subway line would inevitably stimulate the growth of new business and restaurants along that line, especially in the vicinity of the stations of that new line.', 'The city buses that run along the river between downtown and the university would be more attractive to commuters than an inland subway line.', 'Construction of a new subway line would involve constructing a number of new stations throughout the city.']