Step 1: Understanding the Concept:
The question asks for the "main cause" of accidents from a psychological or individual-focused perspective, as suggested by the options. While most accidents are caused by "human error" in a general sense, the options provide more specific potential causes.
Step 2: Detailed Explanation:
(A) Intense light and (C) Noise: These are environmental factors or distractors that can contribute to accidents, but they are situational and not a universal "main cause".
(B) Accident proneness: This is a theory suggesting that certain individuals, due to specific personality traits or stable personal characteristics (like risk-taking, impulsivity, or lower cognitive ability), are more likely to be involved in accidents than others. In industrial and organizational psychology, identifying individual factors that predict accidents is a major area of study. From this perspective, stable individual differences are considered a primary root cause, as opposed to transient environmental factors.
While the theory of a single "accident-prone personality" is debated, the idea that individual factors are a main cause of accidents is widely accepted.
Step 3: Final Answer:
Among the given choices, "Accident proneness" represents the concept of stable individual characteristics being a main cause of accidents, which is a significant focus in safety psychology.