**Core Concept**
Laparoscope sterilization is a critical process to prevent contamination and infection during surgical procedures. The goal is to eliminate microorganisms from the instrument while preserving its integrity.

**Why the Correct Answer is Right**
Laparoscopes are typically sterilized using a combination of high-temperature and high-pressure steam, also known as autoclaving. This process involves exposing the instrument to saturated steam at 121°C (250°F) for 15-20 minutes. Autoclaving is effective against a wide range of microorganisms, including bacteria, viruses, and fungi. The high temperature denatures proteins and disrupts cell membranes, ultimately leading to microbial death.

**Why Each Wrong Option is Incorrect**
**Option A:** Chemical disinfection is not sufficient for laparoscope sterilization, as it may not penetrate the instrument's complex optics and may leave residues that can compromise the instrument's performance.
**Option B:** Ethylene oxide sterilization is typically used for heat-sensitive instruments, but it is not the preferred method for laparoscopes due to its lengthy processing time and potential for toxicity.
**Option C:** UV light disinfection is not an effective method for sterilizing laparoscopes, as it may not reach all areas of the instrument and may not be sufficient to eliminate all microorganisms.

**Clinical Pearl / High-Yield Fact**
Always check the manufacturer's instructions for specific sterilization protocols, as some laparoscopes may require specialized handling to prevent damage or contamination.

**Correct Answer: C. Ethylene oxide sterilization.**