Just the answers please...no need explanation.

1) Which of the following types of laws consists of rules and principles that apply in general to the relationships of sovereign states and international organizations?

Select one:

a. Private international law

b. Conflict of law

c. Common international law

d. Public international law

2) A customary practice of States may be incorporated into the corpus of International Law if States perceive it as being obligatory in their international relations.

Select one:

a. True

b. False

3) If an offer is oral, the acceptance must be made immediately, unless the circumstances indicate otherwise.

Select one:

a. False

b. True

4) Which of the following statements is CORRECT?

Select one:

a. State practice is a source of international law that develops when states behave toward each other in a certain way long enough and their behaviour becomes generally accepted practice within the status of law.

b. There is a basic rule that state practice must continue for at least a number of years before it can be recognised as having become customary law.

c. A customary practice of States may be incorporated into the corpus of International Law if States perceive it as being obligatory in their international relations.

d. Universal acceptance is required for a norm to be incorporated into International Law.