What does "DAB" stand for in radio broadcasting?

The term "DAB" stands for Digital Audio Broadcasting, which is a digital radio technology used for broadcasting radio stations. This technology allows for the transmission of audio programming in a digital format as opposed to the traditional analog methods. The use of digital audio broadcasting enhances sound quality, reduces interference, and allows broadcasters to transmit more stations on the same frequency spectrum. DAB also typically supports additional features like text information and data services, providing a richer experience for listeners.

The other options do not represent established terminology in radio broadcasting. Dynamic, Direct, and Diverse Audio Broadcasting do not correspond to recognized methods or standards in the industry. The specific term "Digital Audio Broadcasting" accurately identifies the technology at hand and is widely accepted and utilized globally to improve the efficiency and quality of radio broadcasting.