The term heritability is used when the variation between traits is influenced by Genetics factor rather than environmental. This percentage of heritability of big five trait dimensions come from the research on TWINS that are grown in a separate environment but somehow still display a lot of similar traits.
The Sahara is a desert located in northern Africa (as you can see in the map). And one of the only answer countries in proximity to that desert is Mali, so the answer would be C.
The Unions strategy wa sto only give supplies and food to their soldiers at the fort, because they didn't want to start fighting in the country and start a civil war.