Environmental scientist Dr. Amy Chen argues that electric vehicles are significantly better for the environment than gasoline cars even when accounting for battery production and electricity generation.
Which life-cycle analysis would best support Chen's comprehensive claim?
Electric cars produce no tailpipe emissions
Over their full lifespan including manufacturing, use, and disposal, electric vehicles produced 65% fewer total greenhouse gas emissions than comparable gasoline vehicles, even in regions with coal-heavy electricity grids
Battery technology is improving rapidly
Electric car sales are increasing annually
Correct Answer: B
Choice B is the best answer. Complete life-cycle comparison including worst-case (coal grid) still shows EV advantage.
- Context clues: Chen says EVs are better "even accounting for" production and electricity.
- Evidence evaluation: 65% reduction + full lifecycle + coal-grid scenario covers all objections.
- Verify: Addresses the most common counter-argument (dirty electricity).
💡 Strategy: "Even when" claims need evidence that includes the challenged condition.