Which has a greater lowering of vapour pressure

We know that Raoult established that relative lowering of vapour pressure depends only on the concentration of the solute particles.

As Relative lowering of vapour pressure$={\mathrm{P}}_{\mathrm{A}}={\mathrm{x}}_{\mathrm{A}}{\mathrm{P}}_{\mathrm{A}}^0$

Since molality is the same for all and Urea, Glucose, and Sucrose all are non-electrolytes and do not ionize into ions when dissolved in water. Hence all will have the same lowering of vapour pressure.

So, the Correct answer is (d).