C. Opportunity cost
This is the opportuntiy that they lost. it costed them. Thus, opportunity cost for another opportunity.
Disadvantages of war include death and injury of large numbers of people, loss of economic resources, destruction of the environment, loss of productivity and lasting damage to military personnel.
<span>The astronomical system of Ptolemy, in which the earth is at the center of the universe with the sun, moon, planets, and stars revolving about it in circular orbits at increasing distance. Some of the orbits have epicycles.</span>
Listen to Frank Sinatra's My Way if you feel like you're feel useless. JuiceWrld for Heart Break. Lil Darkie if you're mad and Classics you can remember listening to. Catchs you off guard and you be listening to music for hours on end.