The source-backed, question-specific record explains: The famous 'Battle of the Tennis Court' at the Deputy Commissioner's bungalow in Kohima is one of the iconic small-unit actions of WWII. British and Indian troops held positions on one side of the tennis court while Japanese forces were on the other side just 15-20 yards apart. 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 A gives Tennis Court Battle and satisfies every condition stated in the question. The remaining choices—Swimming Pool Battle, Garden Battle and Lawn Battle—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 Tennis Court Battle without relying on option position.