23. By the A.D. 200s, the jus gentium became unnecessary because

a. most free males ion the provinces had been made citizens of Rome.
b. Marcus Aurelius had rescinded the jus civile.
c. Hadrian had strengthened Rome's fortifications.
d. provincial residents demanded their own sets of laws.

http://civilliberty.about.com/od/europe/g/Jus-Gentium-Definition.htm

yes i looked there already before i posted it on here and did not find the answer .

"The term jus gentium (literally: "laws of the nations") was used in ancient Roman law to describe laws governing the interactions between Romans and non-Romans, based on principles of natural justice that did not depend on both parties' status being that of a Roman citizen. "

Which of your answers mention Roman citizenship?

To determine the correct answer, let's break down the options and analyze each one:

a. most free males in the provinces had been made citizens of Rome.
This option suggests that by the A.D. 200s, most free males in the provinces had become Roman citizens. To verify if this is true, you can research the historical records of Rome during that time period. Look for information on citizenship policies and how many free males were granted Roman citizenship. If you find evidence supporting this option, then it could be the correct answer.

b. Marcus Aurelius had rescinded the jus civile.
This option states that Marcus Aurelius, a Roman emperor, had revoked the jus civile. Jus civile refers to the civil law that applied to Roman citizens. To confirm if this is accurate, study the reign of Marcus Aurelius and any legal reforms he implemented. If you find evidence supporting this option, then it could be the correct answer.

c. Hadrian had strengthened Rome's fortifications.
This option suggests that Hadrian, another Roman emperor, had reinforced Rome's fortifications. However, it is unclear how fortifications relate to the jus gentium becoming unnecessary. To assess if this option is valid, research Hadrian's constructions and their impact on Roman law or social dynamics. If you do not find a clear connection, then this option may not be the correct answer.

d. provincial residents demanded their own sets of laws.
This option implies that residents in the provinces began demanding their own sets of laws, making the jus gentium unnecessary. To verify this claim, investigate historical sources pertaining to the demands for local laws by provincial residents during the A.D. 200s. If you find evidence supporting this option, then it could be the correct answer.

Ultimately, to determine the correct answer, you should consult historical sources, textbooks, or consult with an expert in ancient Roman history.