Consider the relation R (A, B, C, D, E) and the set of dependencies: G = {{A, B} → {D}, {B, C} → {A}, {D, E} → { C}}.
Check true or false for each of the alternatives below and justify.

I would like to understand what was done to find the correct answer and why the others are wrong. Thanks a lot!

What is wi-fi infrastructure? a metropolitan area network that uses radio signals to transmit and receive data a communications technology aimed at providing high-speed wireless data over metropolitan area networks a means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves includes the inner workings of a wi-fi service or utility, including the signal transmitters, towers, or poles and additional equipment required to send out a wi-fi signal