Which of the following BEST describes the main difference between scarcity and a shortage? 20 POINTS

A.
While a shortage is a temporary market condition, scarcity is an ongoing condition in the world.
B.
While scarcity is a temporary market condition, a shortage is an ongoing condition in the world.
C.
Scarcity is found throughout the world, but shortages only occur in wealthy countries.
D.
Shortages occur everywhere, but scarcity happens only in countries with very high poverty levels.