Aperson sits on a crowded subway, phone in hand and staring blankly at no one in particular. psychiatrist fadi haddad sees behavior such as this and worries that technology is making people less:

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.