The equilibrium of an endothermic reaction which proceeds with an increase in volume can be shifted in the reverse direction by

When an endothermic reaction takes place, an increase in temperature will shift the equilibrium towards the products side. Similarly, increasing the pressure will shift the equilibrium towards the side with fewer gas molecules. Since an increase in volume indicates more gas molecules on the product side, decreasing the volume will shift the equilibrium towards the products. Therefore, decreasing the pressure (increasing the volume) will shift the equilibrium towards the reactants side. Decreasing the temperature will also shift the equilibrium towards the reactants side. So, the correct option is decreasing the temperature and increasing the pressure.