Which of the following items is crucial for a visible sales display?

Merchandise displays are vital for a visible sales display as they directly showcase products to customers in an appealing and organized manner. A well-designed merchandise display captures customers' attention, highlights key items, and encourages purchases by making products easily accessible and visually attractive. Effective displays can create a certain atmosphere, draw customers into different sections of the store, and strategically guide them towards featured products or promotions.

In contrast, while store restrooms, aisle markers, and security badges play important roles in the overall shopping experience and store management, they do not specifically serve the purpose of enhancing product visibility in sales displays. Restrooms contribute to customer comfort, aisle markers assist with navigation through the store, and security badges ensure safety but do not influence the direct presentation of merchandise.