I want to know the answer to the following question:
Which major U.S store does Guam currently have that happens to be the largest in the world?
All the background I'm provided with is that "Significant sources of revenue include duty-free designer shopping outlets, and the American-style malls: Micronesia Mall, Guam Premier Outlets, the Agana Shopping Center, and the world's largest Kmart.[citation needed]". Is that enough to answer the question?