Why were the atom bombs dropped on Japan? O Japan wouldn't give up and ground war would be costly
O US Military was very weak at the time
O US needed to win the war to move on to Hitler in Europe
O All of the above

I think it's the first answer, but I'm not quite sure

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.