4. Match the six categories of nudging techniques with the relevant example of each technique. Providing three recommended options Answer 1 Structure complex choices Having the option "I would like to donate 2 to charity" ticked from the start Answer 2 Defaults Imposing a surcharge Answer 3 Incentives Providing a warning light Answer 4 Expect error Telling someone where they are going wrong Answer 5 Give feedback Mapping the relationship between choices and well-being Answer 6 Understand preferences