Answer:
e. public service
Step-by-step explanation:
A public service can be defined as a major type of advertising that is characterised by; communicating a message on behalf of some good cause, such as stopping drug abuse, and is usually created by advertising professionals free of charge with the necessary time and space often donated by the media.
Public service is aimed at ensuring that the masses are duely sensitized through the media on avoiding lifestyles that will destroy them.
It's a good cause type of advertising in which the people who are sponsoring does without expecting no gain and ita always free of charge.
Most times public service is aimed at combatting a vice or some vices in the society.