Task: Question Answering
Input (English): Problem: in the coordinate plane , points ( x , 3 ) and ( 5 , y ) are on line k . if line k passes through the origin and has slope 3 / 5 , then x + y = 
Options: a ) 9 , b ) 8 , c ) 7 , d ) 5 , e ) 6
Output (English): b