(D) Thinking accommodation of various demands.
Democracy is valued for its ability to accommodate diverse groups and demands, not for quick decisions or concentration of power.
The source passage directly asks: "Is democracy all about coping with multiple pressures and accommodating diverse demands?" — and the cartoon caption reinforces this. Options A, B, and C are either incorrect or describe non-democratic features (concentration of power is opposed to democracy; quick decision-making suits dictatorship per Chapter 1). Examiners expect you to link the cartoon's theme to the correct strength of democracy from the chapter.