**Core Concept**
Infections mononucleosis, caused by Epstein-Barr virus (EBV), involves the activation of immune cells and the production of various cytokines and inflammatory mediators. Certain medications can exacerbate this condition or interfere with the body's response to the virus.

**Why the Correct Answer is Right**
The drugs contraindicated in infectious mononucleosis are those that can stimulate the immune system or increase the risk of agranulocytosis (a condition characterized by a severe decrease in neutrophil count). **Amoxicillin** and **sulfonamides** can exacerbate the condition by increasing the production of antibodies against EBV, leading to a more severe immune response. **Corticosteroids** can suppress the immune system, but in the case of infectious mononucleosis, their use can be counterproductive as they may mask the symptoms and delay recovery. **Agranulocytosis-inducing drugs**, such as carbamazepine, phenytoin, and sulfonamides, should be avoided due to the risk of precipitating agranulocytosis.

**Why Each Wrong Option is Incorrect**
* **Option A:** **Aspirin** is not typically contraindicated in infectious mononucleosis.
* **Option B:** **Cephalosporins** are generally safe to use in patients with infectious mononucleosis.
* **Option C:** **Clindamycin** is not commonly associated with agranulocytosis or immune system stimulation.

**Clinical Pearl / High-Yield Fact**
In patients with infectious mononucleosis, it's essential to avoid medications that can exacerbate the condition or interfere with the body's response to the virus. Always consider the potential risks and benefits of medication use in these patients.

**Correct Answer: D. Agranulocytosis-inducing drugs, Amoxicillin, Sulfonamides, Corticosteroids.**