According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

The correct answer is to reduce stress.  

Based on Le Chatelier's principle, a system in chemical equilibrium reacts towards the stress by shifting the equilibrium in a direction, which minimizes the stress. For example, if a system has attained equilibrium, then if one elevates the pressure, the chemical system will react by shifting the equilibrium in a direction, which decreases the pressure. Similarly, if a system is in equilibrium, then if one elevates the concentration/temperature, then the chemical system will react by shifting the equilibrium in a direction, which decreases the concentration/temperature.  

According to Le Chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress