What best anchors Schlieffen Plan?

Causation check: Schlieffen Plan is linked to 1894-1918. is the best answer. It fits Part two: The First World War: stalemate within BA Conflict and tension: the First World War, 1894-1918 and directly supports Study the Schlieffen Plan, including reasons for the plan, its failure, the Battle of the Marne and its contribution to stalemate. Check this by using trigger, background factor, short-term cause, long-term cause, result, impact; do not choose a distractor simply because it sounds historical.

The correct option is Schlieffen Plan is linked to 1894-1918.. This MCQ is about What best anchors Schlieffen Plan, not just general recall. The correct option works because it matches the period context of Paper 1 Section B: Wider world depth studies and uses the same evidence base as Study the Schlieffen Plan, including reasons for the plan, its failure, the Battle of the Marne and its contribution to stalemate. The rejected options are weaker: 1) A claim about Marne with no date or context.; 2) An opinion that ignores historical evidence.; 3) A conclusion that reverses cause and consequence.. To decide between them, students should separate, explain, weigh, link the option against chronology, evidence and the learning objective, then keep evidence separate from opinion and interpretation.