The most important source of freshwater in the western Sahel region is the __________. A. Mediterranean Sea B. Atlantic Ocean C. Niger River D. Nile River Please select the best answer from the choices provided A B C DThe most important source of freshwater in the western Sahel region is the __________. A. Mediterranean Sea B. Atlantic Ocean C. Niger River D. Nile River Please select the best answer from the choices provided A B C D