CDM differs from FDM because only one channel occupies the entire bandwidth of the link. It differs from TDM because all stations can send data simultaneously, without any timesharing.

It is similar to wavelength division multiplexing (WDM).

The stations share the channel's bandwidth in time. Each station is allocated a time slot during which it can send data. Each station transmits its data in its assigned time slot.

The available bandwidth is divided into frequency bands. Each station is assigned a specific band to transmit its data. In other words, each band is assigned to a specific station and remains the property of that station at all times.

None of the choices.