What Was Not True About Northern Slaves' Labor and Culture

What was not true about northern slaves' labor and culture before about 1700?

A) Slave codes were milder and not generally enforced. Some slaves could own property.
B) Some slaves could obtain jobs and training in skilled positions in the northern cities.
C) Because there were fewer slaves and they were more isolated, less African heritage was preserved.
D) When not working for their masters, all slaves lived in large, run-down housing in segregated parts of cities.