Hi. You did not submit the pamphlet this question refers to, which makes it difficult for this question to be answered. However, I will try to help you as best I can.
As the National Congress is a political authority, made up of people who must be committed to the truth and accurate reporting of facts, Americans are likely to see a pamphlet published by Congress as a reliable source of information. The pamphlet can be considered credible if it is a political matter that has been drafted by a reputable and appropriate political group such as the national congress.
Communism is a political idea that wants public property for the citizens to use. If the pamphlet is credible if its source is HUAC.
Communism is an ideology that wanted the economic resources and social infrastructure to be controlled by the state. Communism is different from socialism. The poster depicts the information on communism.
The poster can be said to be believable if the content in it is crafted by a national political group like congress. The national congress is a political authority that contains two houses and is a reliable source of information.
Therefore, the pamphlet can be said to be reliable.
Learn more about the congress here:
https://brainly.com/question/12695227
