The first three options I see are all making-decision process to take action, but the last one is the one that is not like that. Researching is something that is not so close in meaning to what you need. That is why, D is a good option.
The Peloponnesian War weakened the Greek city-states and it divided them. This gave Phillip 11 of Macedon the opportunity to move in and conquer them in their weakened, non-united condition and they were never to get their original strength back again. The Peloponnesian war was very debilitating to the Greek city-states.
When groups of people, including Asian Americans and Pacific Islander Americans, are not sensibly spoken to, the recorded account of the country itself winds up slanted and one-sided.
As the going with guide appears, a portion of these Americans ventured out more distant to get to North America than most European pilgrims and a few Africans. Asia conventionally alludes toward the Eastern side of the equator of the globe. China commonly characterizes the Asian locale of enthusiasm for this subject investigation.