The multiple choice drop-down menu is a single-select question type that presents the answer options in a list format. Use the drop-down menu to ask respondents to select a single option from a long list of five or more options such as a list of cities in a county or state.
To add multiple choice drop-down question:
Force response option makes a question mandatory/required, as shown in the above image.
When you select request response, the respondent gets a pop-up in case a question is not answered, requesting to answer the question or continue survey without answering.
To create a multi-select drop-down menu:
This feature is available with the following licenses :