Please HELP
An explanation of how a cellular network works with a example.

Radio waves are used to transfer signals to and from the cell phone. Modern mobile phone networks use cells because radio frequencies are a limited, shared resource.

All of the cell sites are connected to telephone exchanges (or switches), which in turn connect to the public telephone network.

its c because i have that test too

answer: no

explanation:

i thought it would be hard. yeah it took a little while to get used to but in all you will be fine. just do your work and stay out of drama.