Where does stress build up and eventually release within a fault? a. seismogenic zone b. seismic belts c. hypocenter d. epicenter

Hypo center is the point of stress build up and it eventually release within a fault.  

Answer C: Hypo center

Explanation:

During the time of earth quake, only a part of a fault is involved in the rupture. Usually, distribution of aftershocks outlines that area in the sequence . This region or point where an earthquake cracks initiates the hypo center. Epicenter, the point above the hypo center on the earth surface. On a map when plotting earthquake locations, the epicenter determines the center which represents an event.