Identifying direct references to Heathrow runway proposal

Steps:

• Analyze question: Find statements explicitly addressing the idea of building another runway.
• Review choices: Check each for mention or implication of the proposal.
• Eliminate background facts: Discard general info not tied to expansion decision.
• Select opposition: Choose statement that debates the proposal itself.

Why D is correct:

• D directly opposes the runway proposal by advocating alternative capacity improvements, per debate structure on infrastructure policy.

Why the others are wrong:

• A: Provides airport stats as context, not addressing the proposal.
• B: States economic benefits of expansion but assumes proposal without debating it.
• C: Describes competition generally, unrelated to runway building.

Final answer: D