Which of the following is/are the purpose of corrosion testings?

• A. Evaluation and selection of materials for a specific environment
• B. To know the effect on the corrosion of metals by addition of inhibitors
• C. To study the mechanism of corrosion
• D. Evaluation and selection of materials for a specific environment, to know the effect on the corrosion of metals by addition of inhibitors and to study the mechanism of corrosion