Bunuel
Urban Planner's Claim: The city plans to reduce traffic congestion by implementing a carpooling initiative that encourages drivers to share rides by offering tax incentives. The plan is based on the assumption that by reducing the number of single-occupancy vehicles on the roads, overall traffic volume will decrease.
Which of the following, if true, raises the most serious doubt regarding the effectiveness of the city's plan to decrease traffic congestion?
(A) Many drivers prefer to travel alone due to the flexibility and privacy it offers, even when financial incentives are offered for carpooling.
(B) The tax incentives provided for carpooling are structured to disproportionately benefit higher-income drivers, potentially leading to less participation among lower-income commuters.
(C) Public transportation systems are likely to see an increase in use due to higher awareness of environmental issues, regardless of the carpooling initiative.
(D) Most traffic congestion is due to commercial vehicles, which are not affected by carpooling incentives as they cannot realistically share vehicle space.
(E) The tax incentives for carpooling will initially cost the city a significant amount in lost tax revenue, which could have been used for other traffic reduction measures.
(A) Many drivers prefer to travel alone due to the flexibility and privacy it offers, even when financial incentives are offered for carpooling.
Could be a reason for drivers continuing to travel alone and traffic congestion not reducing.
Keep.
(B) The tax incentives provided for carpooling are structured to disproportionately benefit higher-income drivers, potentially leading to less participation among lower-income commuters.
Not comparing high and low income drivers at all in scope.
Eliminate.
(C) Public transportation systems are likely to see an increase in use due to higher awareness of environmental issues, regardless of the carpooling initiative.
We are not talking about the effectiveness of public transportation but the traffic volume on roads. Out of Scope.
Eliminate.
(D) Most traffic congestion is due to commercial vehicles, which are not affected by carpooling incentives as they cannot realistically share vehicle space.
If carpooling is not possible here, then the initiative fails to meet its objective of reducing the traffic.
Keep.
(E) The tax incentives for carpooling will initially cost the city a significant amount in lost tax revenue, which could have been used for other traffic reduction measures.
We are not discussing the financials regarding the initiative but if it will be effective in reducing the traffic congestion.
Eliminate.
Between A and D, D is better since it directly mentions that most traffic congestion is due to commercial vehicles, for which the plan does not work and hence a stronger reason for the plan to fail.
Hence answer is option D