"He was an explorer sponsored by the French settlements on the Mississippi River" is the most accurate description of Joliet.
Answer: Option B
Step-by-step explanation:
Louis Joliet was a French adventurer of the 17th century who discovered the source of the Mississippi River with the assistance of native American groups. Joliet in 1673 proceeded on a private voyage with Jacques Marquette, a missionary and linguist, to be one of the first Europeans to discover what the "Mesipi" river was named by Native Americans to figure out where it led to, expecting to find a route to Asia.