Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is the method to apply metallic coating to prevent corrosion

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â i

1.	Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is the method to apply metallic coating to prevent corrosion
A.	hot dipping
B.	metal spraying
C.	electrplating
D.	all of the above
Answer» E.