Answer:
I don't really get the options but it favoures the reactant side. 
Step-by-step explanation:
Increasing pressure favours the side with fewer moles of gas while decreasing pressure favours the side with the more moles of gas. E.g 
 If there is 0 moles of gas particles in the reactant side and 1 mole of gas particle in the product side, increasing pressure favours the reactants while decreasing pressure favours the product side. 
 With the explanations I have made, I hope the question is now clear to you.