A Cable Manufacturing Unit Tested Few Elements On the Basisof their Physical Properties - Bzziii.com

A cable manufacturing unit tested few elements on the basisof their physical properties.

Which of the above elements were dicarded for usage by the company? 

A. W, X, Y 

B. X, Y, Z 

C. W, X, Z 

D. W, X, Z

B. X, Y, Z