A is a set of interrelated propositions that attempt to describe, explain, predict, and ultimately control some class of events.

Theory

Explanation:

Theory is defined as concept tat determines about certain topic through content and idea .This explanation is continuously tested so that the phenomena explained through the concept can be appropriately accounted. Theories are not based on guesses.

The subject on which theory is described contains linked facts and statements for elaborating about the matter.Example of theories are atomic theory, evolution theory etc.  

the correct answer is "c": the pillars proclaimed his regret at the bloodshed at the battle of kalinga and his conversion to buddhism.

the kalinga war is considered as one of the largest battles in the history of india. it was fought between the between the maurya empire, which ruled the lands of what is now known as india at the time, and the independent feudal kingdom of kalinga.

the army of maurya empire, led by its king ashoka, fought a prolonged war against kalinga. the war ended around 262 bce with the victory of the maurya empire. it is believed that ashoka, after having witnessed the loss of many lives during this war, felt deep responsibility and eventually converted into buddhism.