Answer:
to protect France's claim to the lower Mississippi River
to continue to explore the region
Step-by-step explanation:
Jean-Baptiste Le Moyne, Sieur de Bienville was the younger brother of Pierre Le Moyne d’Iberville, during their expedition formed the French settlement in Louisiana. However, following the Iberville’s final return to France, Bienville chooses to stay behind because of the following:
1. to protect France's claim to the lower Mississippi River
2. to continue to explore the region