Cleavage is a mode of folding:1. It is a process wherein all internal movements are along shear planes which do not change their position during the entire process.2. It is a process wherein all internal movements are along shear planes which change their position during the process.3. The process involves dilation in the vertical direction.4. The process involves compression in a lateral direction.Which of the above statements are correct?

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