True, They did fight in the american revolution, civil, WWI, and WWII
Answer: A. The size of the empire increased as a result of the trajan's conquests.
Explanation: This is because Trajan conquered the region of Dacia, Nabataean kingdom in Arabia, and more. These places were added to the empire as a result of the size of the empire increasing.
I also did this test question so trust me.
I’m not really sure I did it right now ima check but I think it was b