(Solved): please provide for me only the correct options What does Maximum Usable Frequency (MUF) refer to in ...

What does Maximum Usable Frequency (MUF) refer to in the context of radio wave propagation? A) All answers are wrong B) The highest frequency at which a radio wave can be transmitted and still be reflected back to Earth by the ionosphere C) The frequency band reserved for military communications D) The maximum frequency at which radio waves can penetrate solid objects E) The highest frequency at which a radio transmitter can operate describes the way of accessing a network or other communication partners, i.e., without a wire. A) Business B) Mobile C) Vehicle D) All answers are wrong E) Wireless How does Multi-path propagation affect signal reception in wireless communication? A) Causes signal interference B) Enhances signal clarity C) Reduces signal bandwidth D) Improves signal reliability E) Increases signal strength Which multiplexing technique assigns time slots to users in a round-robin fashion, allowing each user to transmit in a predefined sequence? A) Frequency-division multiplexing (FDM) B) Time-division multiplexing (TDM) C) Statistical multiplexing D) Synchronous time-division multiplexing E) Code-division multiplexing (CDM)