Answer:
B. Taper Integration.
Step-by-step explanation:
This is a form of partial integration as it is not a vertical integration.
Generally, tapered integration always allows you to preserve the threat of manufacturing key items yourself without full commitment to the process. You only manufacture a part of the total components needed and outsource the rest. If your internal manufacturing operation can be easily expanded, you'll put more teeth in any threats made toward uncooperative suppliers.