Question

Which of the following, if true, could be proponents of the plan above most appropriately cite as a piece of evidence for the soundness of their plan?

• A. An effective high-speed ground-transportation system would require major repairs to many highways and mass-transit improvements.
• B. One-half of all departing flights in the nation’s busiest airport head for a destination in a major city 225 miles away.
• C. The majority of travelers departing from rural airports are flying to destinations in cities over 600 miles away.
• D. Many new airports are being built in areas that are presently served by high-speed ground-transportation systems.
• E. A large proportion of air travelers are vacationers who are taking long-distance flights.

Answer 1

The correct option is B One-half of all departing flights in the nation’s busiest airport head for a destination in a major city 225 miles away.

Option: (b)
The plan proposes that high-speed ground transportation would be a less expensive solution to airport congestion than would airport expansion. B indicates that between the cities to be served by the plan there is substantial air travel to which ground transportation would represent an alternative. Therefore, B is the best answer.
No other choice could be cited appropriately. A and D both provide some evidence against the plan. A by emphasizing the likely costs of providing high-speed ground transportation is not by itself a solution to airport
congestion.
D by indicating that such an alternative is not by itself a solution to airport congestion.
C and E say that there are many travelers for whom the proposed system would actually provide no alternative.