Consider the following statements regarding the anodizing process: 1. Anodizing is an electrolytic process that increases the thickness of the natural oxide layer on the surface of metal parts. 2. During anodizing, the aluminium part is made the cathode in an acidic electrolyte. 3. The oxide layer formed during anodizing is porous, allowing it to be dyed in various colors before sealing. Which of the statements given above is/are correct?

Options:

• A: 1 and 2 only
• B: 1 and 3 only
• C: 2 and 3 only
• D: 1, 2 and 3

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