I think A, but I am not really sure.
Answer: Domestic terrorism is a form of terrorism in which victims "within a country are targeted by a perpetrator with the same citizenship" as the victims.
Answer: The born of the Filipino revolutionary leader and the president of the Tagalog Republic Andrés Bonifacio
Some things you could add in your letter:
-bad living conditions
-trenches gave foot diseases because of the wet and muddy areas
-gas masks are essential