The correct option is
C Animals buried and preserved by natural process
- Fossilization(taphonomy), is the process that occurs when plant and animal remains are preserved in sedimentary rock. Fossilization occurs after an organism dies.
- In order for fossilization to occur three things must happen. First, an organism dies. The body is usually rapidly buried through erosion, silt layering, or sinking into the mud. Then, the body will decay and preserved by natural process.
- Hence fossilization is animals buried and preserved by natural process.
- So, the correct answer is 'Animals buried and preserved by the natural process'.