What Was Distinctive About the Pacific Theater of Combat During

What was distinctive about the Pacific Theater of combat during World War II?

A) It was fought mostly on the mainland.
B) The Germans sent their Luftwaffe to reinforce Japan's armed forces.
C) The war in the Pacific had very few naval engagements.
D) The Japanese pilots were ready to surrender soon after the war was declared.
E) It had no connection to Europe with respect to the participants.