Correct option is B
Galvanizing is the process of applying a protective zinc coating to iron or steel to prevent rusting and corrosion. The zinc coating acts as a sacrificial layer, protecting the base metal from oxidation.
· The most common galvanizing method is hot-dip galvanizing, where steel parts are dipped into molten zinc (~450°C).
· Other methods include electro-galvanizing, where zinc is applied using an electrochemical process.
