How do sources us to learn about the past

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male. b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.

Restricting immigrants from entering a country may be based on what belief?  

“a monarchy is indeed the most powerful of any… but then there is imminent danger of his employing that strength to improvident or oppressive purposes.”—william blackstone, commentaries on the laws of england which of the following documents addressed blackstone’s concern in this quote? the magna carta, because it limited the power of the king. common sense, because it encouraged american colonists to declare independence. the mayflower compact, because it created a government and the first written laws for plymouth settlers. the english bill of rights, because it later influenced the u. s. bill of rights.