U.S. human rights policy in the 20th and 21st centuries tried to balance the need to promote human rights abroad with the need to support military allies. Option C is correct.
Under the U.S human rights policy in the 20th and 21st century:
It was forbidden to torture, inhuman or degrading treatment or punishment.
Basic rights such as life, liberty, and security constituted the primary clause of the policy.
It was banned to keep any person in slavery.