**Core Concept:** Mummification is a process that occurs during the preservation of human or animal bodies, primarily involving the removal of water and stabilization of tissues to prevent bacterial growth and decay. This process has both archaeological and clinical relevance, as it aids in understanding ancient diseases, treatments, and lifestyle.

**Why the Correct Answer is Right:** Mummification is primarily achieved through desiccation, which removes water from the body tissues. This drying process comprises two stages: (1) rapid dehydration, where water is removed quickly, typically using natural environmental conditions such as low humidity and low temperature, and (2) secondary dehydration, which involves the removal of residual moisture using natural or artificial methods like salt or chemicals. These processes stabilize tissues, inhibit bacterial growth, and preserve the body structure, allowing for archaeological and clinical examination.

**Why Each Wrong Option is Incorrect:**

A. **Not Mummification:** This option is incorrect as it does not describe the process of preserving a body for study or display.

B. **Preservation without Desiccation:** Desiccation is a crucial component of mummification, as it removes water from tissues to prevent decay. This option misses the key mechanism involved in mummification.

C. **Chemical Preservation:** While chemicals are sometimes used in modern mummification methods, desiccation remains the primary process, making this option incomplete.

D. **Post-mortem Infection:** Mummification focuses on preventing decay, not promoting infection. This option misrepresents the purpose of mummification.

**Clinical Pearl:** Understanding mummification aids in understanding ancient medical practices, diseases, and treatments. In modern medicine, mummification methods can serve as inspiration for tissue preservation in various fields, such as forensic science, paleopathology, and regenerative medicine research.