Why were whites in SC concerned about the number of slaves in SC

The graph shows a student’s data from an investigation about plant growth in five plants of the same type.

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.

Why do you think that wilson 14 point plan was not put into practice