The verified answer to “Important Battles question: The Battle of Assaye (1803) - Arthur Wellesley's forces captured Assaye village. What was Wellesley's rank at the time?” is Major General, option B. The source-backed, question-specific record explains: Arthur Wellesley held the rank of Major General at the Battle of Assaye (September 23 1803). This evidence establishes the historical relationship required in this Important Battles item. A correct solution must preserve the exact battle, date, participants, commander, location, outcome or significance requested by the stem. Similar periods, genres or national traditions do not make two battle facts interchangeable. Option B gives Major General and satisfies every condition stated in the question. The remaining choices—General, Colonel and Brigadier—do not satisfy the complete requirement. The reliable checking method is to identify the named battle first, recall or verify its verified participant or outcome, and then read qualifiers such as “both works,” “original language,” “first published,” “correctly matched” or “incorrectly matched.” These qualifiers determine what counts as the answer. Replaying that method for this Important Battles question confirms Major General without relying on option position.