**Core Concept**
Inhalational induction agents are used to facilitate smooth tracheal intubation in pediatric patients. These agents work by rapidly inducing unconsciousness and muscle relaxation, making it easier to secure the airway. The ideal agent should have a rapid onset of action, be well-tolerated, and have minimal side effects.

**Why the Correct Answer is Right**
The correct answer is Sevoflurane. Sevoflurane is a commonly used inhalational agent in pediatric anesthesia due to its pleasant smell, rapid onset of action, and minimal side effects. It has a low pungency, which reduces the risk of airway irritation and coughing. Sevoflurane also has a relatively low blood-gas partition coefficient, allowing for rapid induction and recovery. This makes it an ideal choice for inhalational induction in children.

**Why Each Wrong Option is Incorrect**
**Option A:** Halothane is an older inhalational agent with a higher risk of hepatotoxicity and more pronounced respiratory and cardiovascular depression. It is not the agent of choice for pediatric inhalational induction.
**Option B:** Isoflurane has a pungent smell and can cause airway irritation, making it less suitable for inhalational induction in children. It is often used as a maintenance agent in pediatric anesthesia.
**Option C:** Desflurane has a very low blood-gas partition coefficient, but its pungent smell and potential for airway irritation make it less ideal for inhalational induction in children.

**Clinical Pearl / High-Yield Fact**
Sevoflurane is a good choice for pediatric inhalational induction because it has a low risk of airway irritation and a rapid onset of action. However, it can cause a mild increase in cardiac output and heart rate in children, which should be monitored during induction.

**Correct Answer:** C. Sevoflurane