Which of the Following Options Describes a War System

Which of the following options describes a war system?

A) components of social institutions and cultural beliefs and practices that promote development of warriors, weapons, and war as a normal part of the society and its foreign policy
B) organized, armed conflict between nations or distinct political factions
C) organized violence by people seeking to promote their cause or resist social policies or practices that they consider oppressive
D) the use of calculated, unlawful physical force or threats of violence against a government, organization, or individual to gain some political, religious, economic, or social objective