Information given:- Trade between northern & southern cities has stagnated
- Few reliable ways exist to transport goods between them
- Conclusion: to spur economic growth, a freeway must be built that passes no more than five miles from each city
Question:- Which option, if true, most seriously weakens the civil engineer's reasoning
Solution:- A: A freeway ten miles from each city would be sufficient to increase trade
- Granted, this option shows that the five-mile limit may be unnecessarily strict
- However, the need to build a freeway remains
- Does not most seriously weaken civil engineer's reasoning
- B: Other, more important causes for lack of trade exist besides unreliable transport
- Directly attacks core assumptions: that building freeway will fix stagnant trade
- If transport isn't the real (or at least, the most important) cause, the plan won't work
- Strongly weakens civil engineer's reasoning
- C: The state's budget is too small to build the freeway
- This is about feasibility, not whether a freeway would solve the problem
- Does not most seriously weaken civil engineer's reasoning
- D: Growth in traffic is linked to how close transport is to the cities
- Supports the idea that proximity matters, supporting the conclusion
- Does not most seriously weaken civil engineer's reasoning
- E: Reliability of existing transport can be improved without a freeway
- Given that the reliability of existing methods can be improved to some extent without building a freeway system does not imply that no freeway is needed to spur economic growth
- Does not most seriously weaken civil engineer's reasoning
Answer: B, There are other, more important causes for the lack of trade between the northern and southern cities of the state in addition to a lack of reliable methods of transporting goods between these two groups of cities.Bunuel
Civil Engineer: Trade between the northern and southern cities of our state has stagnated greatly. There are few reliable methods of transporting goods between these two groups of cities, so in order to spur economic growth in this state, we must build a freeway system, connecting the two groups of cities, that passes no more than five miles away from each city.
Which of the following, if true, most seriously weakens the civil engineer’s reasoning?
A. Building a freeway system that passes as much as ten miles from each city would be sufficient to greatly increase trade between the northern and southern cities of the state.
B. There are other, more important causes for the lack of trade between the northern and southern cities of the state in addition to a lack of reliable methods of transporting goods between these two groups of cities.
C. The state’s infrastructure budget is not currently large enough to finance the construction of a freeway system.
D. Growth in the commercial traffic between two groups of cities is most often associated with the closeness of the transportation system with the cities.
E. The reliability of existing methods of transporting goods between the northern and southern cities of the state can be improved to some extent without building a freeway system