**Core Concept**
Epstein-Barr virus (EBV) is a member of the herpesvirus family and is the primary cause of infectious mononucleosis. EBV has a wide range of clinical manifestations, including infectious mononucleosis, Burkitt lymphoma, and nasopharyngeal carcinoma.

**Why the Correct Answer is Right**
EBV infects B lymphocytes and causes proliferation of these cells, leading to the symptoms of infectious mononucleosis, such as fever, sore throat, and swollen lymph nodes. The virus also has a role in the development of Burkitt lymphoma, a type of non-Hodgkin lymphoma, and nasopharyngeal carcinoma, a type of cancer that affects the nasopharynx. EBV has also been linked to other conditions, including gastric cancer and Hodgkin lymphoma.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because EBV has been associated with infectious mononucleosis, but not with this condition.
**Option B:** This option is incorrect because EBV has been linked to Burkitt lymphoma, but not with this condition.
**Option C:** This option is incorrect because EBV has been associated with nasopharyngeal carcinoma, but not with this condition.

**Clinical Pearl / High-Yield Fact**
It's essential to recognize that EBV is a common cause of infectious mononucleosis, and it can be transmitted through saliva, mucus, and other bodily fluids.

**Correct Answer:** A.