Which property would you use to assign a unique identifier to a control?

The correct property to assign a unique identifier to a control is the ID property. This property serves the purpose of providing a distinct name that differentiates one control from another within a given context, such as an HTML document or a user interface framework.

In many programming environments, the ID property ensures that each element can be referenced distinctly, making it easier to manipulate the control programmatically or style it using CSS. By specifying a unique ID for each control, you can interact with that specific control through scripts, such as JavaScript, or when handling events.

While other options like Tag, ControlID, and Name may allow for some form of identification or categorization, they do not consistently provide a unique identifier in the same standardized way that the ID property does. The Tag property might carry additional metadata, ControlID might not be a recognized property across different frameworks, and the Name property can be used for grouping controls but doesn't guarantee uniqueness in the same way as the ID property.