How are surplus and division of labor important to early man?
a. when we have a division of labor, we can have a surplus
b. when we have a surplus, others can do different jobs
c. division of labor allowed irrigation to develop

The surplus and division of labor were important to early man in the following way:
B - When we have a surplus, others can do different jobs. 
Division of labor is essential to economic development. This allows people to specialize in specific tasks; resulting in greater efficiency and reducing the total cost of producing goods. The division of labor has been around since the earliest records known to man. It was used in its simplest form whether men, women and children performed different tasks around the homestead. The division of labor became an essential part of society during the agricultural revolution. 

C. it's a true fact. i know because we are studying about the great depression. so it best illustrates a claim of fact. thx. have a wonderful day!

Up the mula ya know: '(: '(: '(: '(: '(