The "International Bill of Human Rights" consists of the Universal Declaration of Human Rights and the:
Correct answer: C. International Covenant on Civil and Political Rights and the International Covenant on Economic, Social and Cultural Rights
The International Bill of Human Rights is made up of the UDHR (1948) and the two Covenants adopted in 1966: the ICCPR and the ICESCR, together with the ICCPR's Optional Protocols.