Task: Question Answering
Input (English): Problem: what is the distance between two parallel chords of length 32 cm and 24 cm in a circle of radius 20 cm ? 
Options: ['a ) 1 or 7', 'b ) 3 or 21', 'c ) 4 or 28', 'd ) 2 or 14', 'e ) 5 or 14']
Output (English): c