1. The problem asks to select three details included in a text about messiness. 2. The four details given are: 1) In one study, research participants in a messy room came up with more creative ideas than participants in a tidy room. 2) Some messy people hire professional organizers to help them declutter. 3) There are plenty of guides to help people combat messiness. 4) Cluttered, messy surroundings have been linked to increased stress levels. 3. Since the problem is about reading comprehension and detail selection, no mathematical formulas apply. 4. The three details included in the text are: - Detail 1: Participants in a messy room showed more creativity. - Detail 3: There are many guides to combat messiness. - Detail 4: Messy surroundings are linked to increased stress. 5. Detail 2 about hiring professional organizers is not included. 6. Therefore, the selected details are 1, 3, and 4.