Read the following passage. which early river valley civilization does it describe?

this african civilization relied on the nile to provide water for its crops. it brought water from the river to its fields through sophisticated irrigation systems. it also grew wealthy by controlling trade between central and northern african civilizations.

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.