What is the perimeter of a rectangle whose length \[(l)\] and breadth \[(b)\] are given?

• A. \[2(l\times b)units\]                     
• B.                    \[(2l+2b)units\]              
• C.                    \[2l+3b\,\,units\]            
• D.                    \[l\times b\,\,units\]