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. the harvard t3 study.
d. tearoom trade study (humphreys).

Option (A)

Explanation:

Tuskegee Study of the Untreated Syphilis in the African American male was known as an unethical and infamous clinical study which was conducted in between year 1932 to 1972 by the United States Public Health Service department. The purpose and aim of this study/research was in order to observe the natural past or history of STD i.e. untreated syphilis. Under this African-American men who participated in the study were lured in with the chance of receiving a free health care from US government.

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