Final answer:
The correct answer is A) Collection. Sports enthusiasts typically keep an organized and curated collection of memorabilia to display their interests and passions.
Step-by-step explanation:
Sports enthusiasts often have a collection of memorabilia to showcase their interest. This statement suggests that they accumulate items related to their favorite sports and teams to express their passion and support. The term "collection" indicates an organized, chosen accumulation of items which are typically displayed with pride. In contrast, a "jumble," "pile," or "mess" connotes disorganization and haphazardness, which doesn't accurately reflect the curated nature of sports memorabilia.