Consider the following statements1. All sedimentary rocks are formed under water.2. All sedimentary rocks have layers.3. Loess is formed at the land surface and has no layer.4. Loess is a sedimentary rocks.Codes

• A. 1 and 2 are correct
• B. 2 and 3 are correct
• C. 3 and 4 are correct
• D. 1 and 4 are correct