* Option A: The <ltng:require> tag ensures that scripts are loaded only once, even if referenced multiple times. * Option D: The tag allows you to specify the order of scripts to ensure dependencies are loaded correctly. * Option E: Externally hosted scripts can be loaded using the scripts attribute. Not Suitable: * Option B (Loading scripts in parallel): Scripts are loaded sequentially to ensure proper dependency handling. * Option C (Loading Files from Documents): Files must be hosted externally or in static resources, not in Documents.