Problem: a rectangular parking space is marked out by painting three of its sides . if the length of the unpainted side is 99 feet , and the sum of the lengths of the painted sides is 37 feet , find out the area of the parking space in square feet ? 
Options: ['a ) 126 sq . ft', 'b ) 64 sq . ft', 'c ) 100 sq . ft', 'd ) 120 sq . ft', 'e ) 140 sq . ft']
a