Consider the following statements. 1. Etching2. Exposure to UV radiation3. Stripping4. Developing After a wafer has been coated with photo resist the correct sequence of these steps in photolithography is

• A. 2, 4, 3, 1
• B. 2, 4, 1, 3
• C. 4, 2, 1, 3
• D. 3, 2, 3, 1