In the Ancient World--As It Is in the Modern World--Survival

In the ancient world--as it is in the modern world--survival of an individual, community, or nation depended in part on

A) physical prowess - physical fitness of the inhabitants.
B) highly skilled and disciplined warriors and soldiers.
C) a physical education program that provided instruction in traditional military skills such as endurance running, wrestling, and swimming to name a few.
D) holding athletic competitions that highlighted "combat sports" such as the javelin throw, foot races, archery, and boxing.
E) All of the above.