Which of the following best describes the function of a digital terminal adapter (DTA)?

A digital terminal adapter (DTA) plays a crucial role in bridging the gap between digital and analog signal formats. Its primary function is to convert digital signals into analog signals so that they can be displayed on older televisions or devices that do not support digital broadcasting. This function is essential in ensuring that viewers can still access television content even if their equipment is not equipped to handle the newer digital formats.

Although some other options might seem relevant to aspects of broadcasting, they do not accurately reflect the specific role of a DTA. For example, enhancing signal strength or serving as a backup for digital signals does not align with the core purpose of a DTA. Accessing premium channels also does not capture the fundamental conversion task that a DTA performs. Therefore, the option that describes the function of a DTA most accurately is its role in converting digital signals to analog for displayed content.