Question) Syringe 1 is filled with X while syringe 2 is filled with Y. When the nozzles of these syringe are blockedd, the plunger of syringe 1 can be pushed inwards but the plunger of syringe 2 cannot be pushed inwards in the same manner What can X and Y be ?

$$\begin{gathered} \left(A\right) X-carbon dioxide gas, Y-oxygen gas \\ \left(B\right) X-milk, Y-glue \\ \left(C\right) X-nitrogen gas, Y-cooking oil \\ \left(D\right) X-tap water, Y-water vapour \end{gathered}$$