The correct answer is B because the problem described is structural corruption of PST archives, not simple deletion or preview needs. EaseUS documents that its email recovery product includes the ability to repair damaged or corrupted PST files so they can be accessed again. That capability directly addresses the scenario, where the Outlook archives cannot be mounted or parsed because of structural inconsistencies. Recovering deleted folders or messages would only matter after the PST structure is readable enough for examination. Previewing lost emails is also a later-stage function, not the step that fixes the file itself. CHFI v11 includes email forensics and evidence acquisition from email sources, so tool-selection questions of this kind test whether the examiner can distinguish between repair functions and recovery functions. In forensic workflow terms, corrupted archive repair is the prerequisite step that restores accessibility and enables later parsing, verification, and content extraction. Because the archives are failing to open due to corruption, the function that directly resolves the issue is repair corrupted PST files.