By using the 'Categories - one answer (Dropdown)' question type, respondents are given the option to choose one answer from a number of possible answers (categories). The answers are presented as a drop-down list instead of buttons. It is advisable to consider the possibility that we have not foreseen all possible answers, and to add an 'Other' category to the question if necessary, but for this question type, it is not possible for the 'Other' answer to be a semi-open type where respondents could write their own answers.
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