The content of the principle of respect for human rights in international law maybe expressed in which of the following propositions as expounded by G. Tunkin inTheory of International Law?

• A. all states have a duty to respect thefundamental rights and freedoms of all persons within their territories.
• B. stateshave a duty not to permit discrimination by reason of sex, race, religion orlanguage.
• C. states have a duty to promote universal respect for human rightsand to co-operate with each other to achieve this objective.
• D. all of the above.