**Core Concept**
The volume of distribution (Vd) is a pharmacokinetic parameter that represents the ratio of the total amount of a drug in the body to its plasma concentration. It is an indicator of the drug's ability to distribute into tissues and its affinity for binding to plasma proteins. Drugs with high Vd values tend to have a large volume of distribution, indicating that they are extensively distributed into tissues.

**Why the Correct Answer is Right**
A drug with high volume of distribution is often lipophilic (fat-soluble) and has a high degree of tissue binding. This allows it to penetrate tissues easily, resulting in a high volume of distribution. For example, lidocaine is a local anesthetic that has a high Vd due to its lipophilicity and extensive tissue binding. **Option C (Lidocaine)** is the correct answer because it is a well-known example of a drug with a high volume of distribution.

**Why Each Wrong Option is Incorrect**
* **Option A:** (e.g., Digoxin) - Digoxin has a low volume of distribution due to its high degree of plasma protein binding and low lipid solubility.
* **Option B:** (e.g., Insulin) - Insulin has a low volume of distribution due to its high degree of plasma protein binding and low lipid solubility.

**Clinical Pearl / High-Yield Fact**
Drugs with high volume of distribution tend to have a larger therapeutic window and may require larger doses to achieve the desired effect. However, this also increases the risk of toxicity, especially if the drug is not extensively metabolized.

**Correct Answer:** C. Lidocaine.