Answer:
US factories produced aircraft for the war effort.
US troops at the front relied on trucks to keep them supplied.
Explanation:
Hello! Ceuta was a Spanish territory located in the northern coast of Africa. Persian Gulf is between Saudi Arabia and Iran, plus it also connects to the Indian Ocean. That is not even close to the Mediterranean Sea, or Spain. C is out. Southern Africa is way too far deep and far away from where Ceuta is located. D is out. A is out, because Siberia is a part of Russia, and Ceuta had nothing to do with Russia. Therefore, the answer is D.
Washington Gladden's ideas would most closely be tied to the period in U.S. history that begins just after the Civil War and leads into Reconstruction.
