Consider the following statements.
I. Galvanisation is the method of protecting steel and iron from rusting by coating them with a thin layer of zinc.
II. Pure iron is very soft but if it is mixed with a how small amount of carbon, it becomes hard and strong.
III. When iron is mixed with nickel and chromium, we get stainless steel, which is hard and does not rust.
Which of the statements given above are correct?
(a) I and II
(b) I and III
(c) II and III
(d) I, II and III
