Why were posters such a persuasive form of propaganda?

Explanation: Guns, tanks, and bombs were the principal weapons of World War II, but there were other, more subtle forms of warfare as well. Words, posters, and films waged a constant battle for the hearts and minds of the American citizenry just as surely as military weapons engaged the enemy. Persuading the American public became a wartime industry, almost as important as the manufacturing of bullets and planes. The Government launched an aggressive propaganda campaign with clearly articulated goals and strategies to galvanize public support, and it recruited some of the nation's foremost intellectuals, artists, and filmmakers to wage the war on that front.

Posters are the focus of this online exhibit, based on a more extensive exhibit that was presented in the National Archives Building in Washington, DC, from May 1994 to February 1995. It explores the strategies of persuasion as evidenced in the form and content of World War II posters. Quotes from official manuals and public leaders articulate how the Government sought to rally public opinion in support of the war's aims; quotes from popular songs and sayings attest to the success of the campaign that helped to sustain the war effort throughout the world-shaking events of World War II.

answer: b.

explanation:

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.