Answer:
I believe the verb would be cut since it is the action
A is the only answer that would prove that security is needed on them
The background noise in the radio programs serves to the listener as a way to identify the place where the events hapens. Sounds proper of the eviroment such as animals noises, other people talking, cars, waves in the ocean or other climate indicators. It provides them with a context that helps to better understand what is going on.
It should be C, rude. Tactless means showing no or a lack of sensitivity in dealing with problems and issues.
