Respuesta :
C. the United States because the Japanese attacked the Americans first in a attack known as the Attack of Pearl harbor.
The correct answer is C.
In 1941, as part of their territorial expansions in the Pacific, the Japanese Empire attacked the US in Pearl Harbor (Hawaii) aiming to destroy the US fleet and to impede that it could become an obstacle to their expansion operations in Southeast Asia.
This attack led to the direct intervention of the US in WWII, in the side of the allies against the Axis powers (Germany, Italy and Japan), including the involvement of the US in the Pacific Theatre against Japan.