D i believe
step by step explanation:
<span>They provided protection to all in
exchange for land and labor.</span> <span>About the
hierarchy at the manor where most of the people were serfs and received land in
exchange for farm labor and other jobs (like blacksmith, stone masons and
baker). </span>
If a business sells 50 units per week, they will sell 7 units per day. We divide 150 by 7, getting 21.
The answer will be B) 21 days of inventory.
