**Core Concept**
Internationally quarantinable diseases are a list of conditions that are subject to international health regulations, requiring countries to report and control outbreaks. These diseases pose a significant risk to public health and are typically highly infectious, severe, or easily transmissible.

**Why the Correct Answer is Right**
The correct answer includes diseases such as plague, cholera, and SARS. These diseases are quarantinable due to their high infectivity and potential for severe disease. For example, **Yersinia pestis**, the bacterium responsible for plague, is transmitted through the bites of infected fleas or direct contact with infected animals. The **International Health Regulations (IHR)** require countries to report and respond to outbreaks of quarantinable diseases, ensuring a coordinated global response to prevent international spread.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not specify a disease that is internationally quarantinable.
* **Option B:** This option is incorrect as it is a disease that is not typically classified as quarantinable.
* **Option C:** This option is incorrect as it is not a disease that is subject to international health regulations.

**Clinical Pearl / High-Yield Fact**
It is essential for healthcare professionals to be aware of the quarantinable diseases and their symptoms, as prompt reporting and control measures can help prevent international spread and protect public health.

**Correct Answer:** C. SARS.