Your friend wants to open a hamburger stand. a necessary labor resource is
a. a truck
b. ground beef
c. a grill
d. a chef

It should be D, because only it fits the criteria of being a "necessary labor resource"

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

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