The most appropriate response is C) It conveys that propaganda was aggressively and pervasively forced upon the German people, implying a strong, overwhelming influence.
The use of the term "assaulted" suggests a forceful and intrusive method of spreading propaganda, emphasizing its aggressive nature and the significant impact it had on the populace. This word choice implies that the propaganda was not just passively received but was rather an overwhelming force that affected the German people's beliefs and perceptions in a powerful way.