Task: Question Answering
Input (English): Problem: in a rectangular axis system , what is the area of a parallelogram with the coordinates : ( 5,3 ) , ( 8,3 ) , ( 4,5 ) , ( 7,5 ) ? 
Options: a ) 21 . , b ) 28 . , c ) 35 . , d ) 49 . , e ) 6 .
Output (English): e