Acountry is least likely to use to limit the movement of people into its borders.
a. immigration quotas
b. passports and visas
c. sanctions and embargoes
d. physical barriers

A country is least likely to use passports and visas to limit the movement of people into its borders. The correct option among all the options that are given in the question is the second option or option "b". People within a country is never required to show his passport for going from one place to another within the country.

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Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.