**Core Concept**
Cetrimide is a disinfectant and antimicrobial agent used in various medical applications, including as an ingredient in culture media. This question is testing the student's knowledge of specific culture media used for the isolation and identification of microorganisms causing certain infections.

**Why the Correct Answer is Right**
Cetrimide is a key component of Löwenstein-Jensen (LJ) medium, which is specifically designed for the cultivation and isolation of Mycobacterium tuberculosis, the causative agent of tuberculosis (TB). The LJ medium inhibits the growth of other bacteria and fungi, allowing M. tuberculosis to grow and be identified. Cetrimide acts as a selective agent, preventing the growth of competing microorganisms.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a culture medium that contains cetrimide. Other culture media, such as MacConkey agar, may contain other selective agents but not cetrimide.

**Option B:** This option is incorrect because it is not a specific culture medium that contains cetrimide. Blood agar, for example, is a general-purpose culture medium used for the isolation and growth of a wide range of microorganisms.

**Option C:** This option is incorrect because it does not accurately identify a culture medium that contains cetrimide. Sabouraud dextrose agar is a culture medium used for the growth of fungi, but it does not contain cetrimide.

**Clinical Pearl / High-Yield Fact**
The Löwenstein-Jensen medium is a classic example of a selective culture medium that allows for the isolation and identification of a specific pathogen. This is a high-yield fact for students to remember, as it highlights the importance of selecting the right culture medium for the isolation of specific microorganisms.

**Correct Answer:** D.