Chandragupta’s construction of roads and harbors most clearly demonstrated the importance of what aspect of governance? a) public services b) trade regulations c) redistribution of wealth d) centralization of rule the answer is a, public services. 100% positive! hope this you.

The answer is A) Public services
Public service refers to aspect of governance that is aimed to give some sort of positive value to the citizens such as building infrastructure, offering social works, etc.
Construction of roads and harbors will  give positive value because it give the citizens the opportunities to improve the area of their trades that will  bring more wealth to them.