The correct answer is: A. Bellicose
A bellicose nation is one that is eager or quick to go to war. A nation engaged in war is likely to be focused on military matters and not have the resources or attention to devote to cultural pursuits.
Bellicose is an adjective that means “warlike” or “aggressive.” A bellicose person or nation is quick to anger and eager to fight.
Belligerent is an adjective that means “warlike” or “aggressive.” A belligerent person or nation is engaged in war or is threatening to go to war.
Imperialist is an adjective that means “having or showing an attitude of believing that one’s country or culture is superior to others and has the right to rule others.” An imperialist nation is one that seeks to expand its territory and influence by conquering other nations.
Courageous is an adjective that means “having or showing the quality of being brave.” A courageous person is not afraid to face danger or pain.
While a courageous nation may be willing to fight for its beliefs, it does not necessarily mean that it is bellicose or imperialist. A courageous nation may also be peaceful and supportive of cultural pursuits.