Which of the following content controls allow users to select from a list of choices or type a new item?

A) Combo Box content control
B) Option Button content control
C) Drop-Down List content control
D) Rich Text content control

Combo Box Content Control

A control element in user interfaces that combines a dropdown list with an editable text box, allowing users both to select a predefined option or enter custom input.

Drop-Down List

A graphical control element that allows the user to choose one value from a list of values by clicking on it, often used in forms and spreadsheets.

Option Button

A graphical user interface element that allows the user to make a single choice among a group of options; also known as a radio button.