The research studies mentioned in the passage suggest that a supermarket owner who wants to increase the productivity of workers stocking shelves in the store after the store has closed should play background music selections in which

This option suggests a different structure for the music segments, which does not align with the passage's emphasis on increasing stimulus value through instrumentation and pace. The focus is on the arrangement of music rather than the duration of segments.

Slow-paced, continuous music, while potentially pleasant, contradicts the research findings for workplace productivity. The passage states that increasing stimulus value, achieved through varied instrumentation and pace, enhances worker alertness, which is not supported by this option.

This choice implies a variation in segment length without addressing the crucial aspect of stimulus value. The research emphasizes the importance of progressively stimulating music rather than merely changing segment durations, making this option less effective for increasing productivity.

Alternating fast and slow music does not align with the arrangement strategy described in the passage. The focus should be on a consistent increase in stimulus value, rather than alternating between differing tempos, which could lead to distraction rather than productivity.