Answer:
The statement is true.
Explanation:
Clarity: propaganda, which is the systematic dissemination of a doctrine, needs its message to be clear, so there is no room for ambiguity or misinterpretation (although it might happen).
Unity: propaganda needs unity, that is, it requires a constancy of purpose in order to be taken seriously.
Conciseness: propaganda must be direct, straight to the point, so its message is easily conveyed. Catchy slogans can be used in order to achieve conciseness.
