What it does:
Allows a selection of a single item from a list. It differs from the Multi-Select field in that only one item can be selected.
This object is also important when used in branching forms. Its values are used to re-direct the user dependent upon their selection.
Example:
<Edit tab> notes:
To ensure a value is passed, insert a Default value. Either use a value from the options list or enter, for example, None.