What was the Corps of Discovery? Army group trained in European combat
Period of history before the Industrial Revolution
Ship that sailed from Great Britain to the tip of South America
Team put together to explore the new land of the Louisiana Purchase

western business men

i think the answer is a and i hope this ; ))

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.