Answer:
C)Early people learned to produce their own food.
Answer:or que al habar a en ves de hache se forma la q en benefactiron
Explanation:
ni idea ajskjskaja
A trough is a low turning point or a local minimum of a business cycle. The time evolution of many variables of economics exhibit a wave like behaviour with local maxima (peaks) followed by local minima (troughs). A business cycle may be defined as the period between two consecutive peaks.