There were five original iroquois nations. in the early 1700s, the tuscarora joined the confederacy as the sixth. which is the best way to combine these two sentence? athere were five original iroquois nations, in the early 1700s, the tuscarora joined the confederacy as the sixth. b. there were five original iroquois nations; in the early 1700s, the tuscarora joined the confederacy as the sixth. c. there were five original iroquois nations in the early 1700s because the tuscarora joined the confederacy as the sixth. d. there were five original iroquois nations, in the early 1700s