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

The correct answer fro above statement is:

Historically, an embargo indicates a full ban on all commercial action within two nations, while sanctions are more confined in range and prevent trade in some types of goods or businesses with appropriate individuals and actualities.

The correct answer is - physical barriers.

The physical barriers are what the governments don't tend to use or it is used very rarely in certain conditions in order or limit the movement of people into its borders. Even though it is a method that comes to a lot of criticizing, because it is the age of global movement of people and most of the countries are opening their borders for easier passing, still there are cases where this method is used. Hungary is one example, where the government put fences all over its borders in order to stop the illegal entry of migrants into its territory. It is a totally justified move because it is not a smart move to let in large masses of people without proper or no ID's illegally because it can be a massive blow economically and from safety point of view for the local population.

sorghum farming likely spread with the bantu migration. there is your answer i had to get it wrong to get this right so i hope ya'll enjoy!