One benefit of a centralized government is a. free markets can more easily operate b. people retain most of the power c. decisions can be made more quickly d. totalitarianism is possible

The correct answer is option C: decisions can be made more quickly.

There's only one leader who rules everything in the country, such as federal states, smaller units, and local authorities.

In a Centralized Government, decisions can be made quickly since there's less argument because there's no debate. Moreover, it is a dangerous type of government since there are fewer opinions, ideas and everything can be managed and overthrown by the leader.

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.