Current Situation:
• The city uses diesel-powered buses.
• The number of buses meets current commuting needs.
• No immediate plans to introduce electric buses or build new depots.
Future Projections:
• Significant population growth expected.
• Increased demand for public transportation.
Conclusion:
• The city will need to import additional diesel-powered buses from neighboring regions to meet rising demand.
Understanding the Argument:
The argument concludes that due to population growth and existing constraints (no new depots or electric buses), importing more diesel buses is necessary to meet increased transportation demands.
Identifying the Assumption:
An assumption is a statement that must be true for the argument to hold. It fills in gaps between the premises and the conclusion.
Evaluating the Answer Choices:
B. Residents are unwilling to switch to alternative modes of transportation, such as cycling or walking.
• Analysis:
• Relevance: If residents are willing to switch to alternatives, the increased demand for buses might be mitigated, reducing or eliminating the need to import more buses.
• Necessity: Directly supports the necessity of importing buses by assuming that alternatives won’t sufficiently absorb the increased demand.