ABCD is a rectangle having length \[30\text{ }cm\] and breadth \[25\,cm\]. R Q, R and S are midpoints of AB, BC, CD and AD respectively. What is the area of the shaded part?

• A.                  \[375\,{{m}^{2}}\]         
• B.         \[375\,c{{m}^{2}}\]  
• C.                  \[475\,{{m}^{2}}\]         
• D.         \[425\,c{{m}^{2}}\]