When connecting a Bluetooth device to a mobile device, which of the following BEST describes the purpose of discovery mode?

Two Bluetooth devices connecting without a mobile device describes a standard peer-to-peer Bluetooth connection, not the function of discovery mode specifically.

Discovery mode does not disconnect existing devices or automatically connect to the nearest device - that would describe auto-connect behavior.

When a Bluetooth peripheral is placed in discovery mode, it begins broadcasting its presence by transmitting inquiry response packets, making it detectable and contactable by a host device such as a mobile phone. Without discovery mode enabled on the peripheral, the initiating device cannot locate it during its inquiry scan. This is the required first step in the Bluetooth pairing process.

Seeking out nearby devices describes the inquiry or scanning behavior of the initiating device, not the discovery mode of the peripheral being found.