The issues that caused sectionalism to develop were: economic political geographical all of the above

all of the above     (5 star this if it would be easier if all answers where just the answers)

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.

honestly, i think jake paul is a little butt