Use reasoning to lead to the answer of the following question:
The business men left the discussion in the dressing room, now they just wanted to relax in the sauna of the what?\nOptions:\n- brush hair\n- theater\n- house\n- dwelling\n- bathhouse
 Reasoning process:
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Bathhouse have big sauna to fit many people. Sauna bath is used to relax. The business men just wanted to relax in sauna of bathhouse. Therefore, the final answer is bathhouse.
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