I believe it is A. Just don't hold me down on that. :D
        
             
        
        
        
Magnetism. 
HOPE THIS HELPS !
        
             
        
        
        
Answer:
ω2  =  216.47 rad/s
Explanation:
given data 
radius r1 =  460 mm
radius r2 = 46 mm 
ω =  32k rad/s
solution
we know here that power generated by roller that  is 
power = T. ω    ..............1
power = F × r × ω 
and this force of roller on cylinder is equal and opposite force apply by roller 
so power transfer equal in every cylinder so 
( F × r1 × ω1)  ÷ 2 = (  F × r2 × ω2 )  ÷  2    ................2
 so 
ω2  =  
 
ω2  =  216.47