Task: Question Answering
Input (English): Problem: two concentric circles form a ring . the inner and outer circumference of the ring are 352 / 7 m and 528 / 7 m respectively . find the width of the ring . 
Options: ['a ) 2', 'b ) 4', 'c ) 5', 'd ) 6', 'e ) 78']
Output (English): b