PQRS is a trapezium in which \[\mathbf{PS}\parallel \mathbf{QR}\] and \[\mathbf{PQ}=\mathbf{SR}=\mathbf{12}\]m, then the distance of PS from QR is:

• A.  \[10\sqrt{2}m\]                         
• B.  \[4\sqrt{2}m\]       
• C.  \[5\sqrt{2}m\]                          
• D.  \[6\sqrt{2}m\]