What Was a Result of the Northern Colonies' Lack of a Cash

What was a result of the northern colonies' lack of a cash crop?

A) Slavery did not exist in Massachusetts and New York.
B) More slaves existed in the northern colonies compared to southern ones.
C) Slavery was banned in all of New England.
D) Slavery was not as integrated into the northern colonial economy as compared to the South.
E) The northern colonial economies struggled with trade and attracting settlers.