Task: Question Answering
Input (English): Problem: in the xy - plane , the point ( 3 , 1 ) is the center of a circle . the point ( 3 , - 2 ) lies inside the circle and the point ( - 2 , 1 ) lies outside the circle . if the radius r of the circle is an integer , then r = 
Options: a ) 2 , b ) 3 , c ) 4 , d ) 5 , e ) 6
Output (English): c