Use reasoning to lead to the answer of the following question:
Pick which sentence is not logical.\nOptions:\n- Sentence A: "The air in the room is bad so I close the window for ventilation"\n- Sentence B: "The air in the room is bad so I open the window for ventilation"\n

Sentence A
To encoruage ventilation, a window should be opened, not closed.

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The final answer: Sentence A