The fear of foreigners during the 1920s was part of the return to:

i believe the answer is c

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.

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.

sorry ill come back