Final answer:
Linen must be handled in a manner that prevents contamination to ensure hygiene and cleanliness, which is more crucial than minimizing costs or maximizing space.
Step-by-step explanation:
The proper handling of linen is vital in different settings, especially within healthcare and hospitality industries, to ensure sanitary conditions. When considering how linen must be washed, dried, stored, and transported, the correct answer is to prevent contamination. This encompasses practices that avoid introducing or spreading pathogens and pollutants that could be harmful. While minimizing costs, maximizing space, and improving durability are important considerations, they do not take precedence over the primary concern of maintaining cleanliness and hygiene.