The bricks of dimension \[\mathbf{15cm}\times \mathbf{25cm}\times \mathbf{7cm}\] required to build a wall \[\left( \mathbf{3}.\mathbf{5}\times \mathbf{10}\times \mathbf{12} \right){{\mathbf{m}}^{\mathbf{3}}}\]are

• A.  160000
• B.  170000         
• C.  180000                        
• D.  200000