Final answer:
The fact in the given options is that John Reed opened a giant mining operation.
Step-by-step explanation:
The fact in the given options is D. John Reed opened a giant mining operation.
This fact is based on the historical account of the Reed family and the discovery of gold in North Carolina in the early 1800s. John Reed is known for finding a large gold nugget in Little Meadow Creek, which led to the establishment of a successful mining operation.
Learn more about John Reed and the establishment of a mining operation