How did access to the labor of enslaved people change the American colonial economy? A.
It forced people to spend more on a permanent labor force.

B.
It allowed the development of a consumer culture due to increased wealth.

C.
It took away jobs from indentured servants.

D.
It ensured that northern manufacturing jobs would always be available for white laborers.

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

mexico south america

explanation:

porter is writing economic history because he is focusing on the cost of developing vaccines.

i would say your answer is a)

sorry if im wrong