Which statement about the color red is correct?

• A. Red has no effect on arousal.
• B. Red signals cooling and calmness.
• C. Increases heart rate and blood pressure.
• D. Red is associated with safety.

Answer: (C)

Color can influence arousal and physiological responses. Red is a warm, stimulating color that tends to heighten arousal, which shows up as increased heart rate and blood pressure. This makes red feel urgent and energizing, which is why red is often used to grab attention and signal alertness. The idea that red has no effect on arousal isn’t supported by evidence, and the notion that red signals cooling and calmness conflicts with how red is perceived. Red being linked to safety isn’t typical; safety cues are more commonly green or blue, while red can signal danger or the need to stop.