The correct option is C No change in equilibrium.
The equilibrium reaction is
2A (g)+3B (g)⇌3C (g)+2D (g).
The total number of moles of reactants is equal to the total number of moles of products .i.e. Δng=ngproducts−ngreactants=(3+2)−(2+3)=0
As the number of moles are equal, both in reactants and products side, therefore pressure has no effect on the equilibrium.
So the equilibrium will remain unchanged.