**Core Concept**
The question is testing the pharmacokinetics of statins, specifically their half-lives. The half-life of a drug is the time it takes for the plasma concentration of the drug to reduce by half. It is an important factor in determining the dosing regimen and clinical efficacy of a medication.

**Why the Correct Answer is Right**
The correct answer is Atorvastatin, which has a half-life of approximately 14 hours. This is due to its extensive hepatic metabolism by the cytochrome P450 3A4 enzyme. The long half-life of Atorvastatin allows for once-daily dosing and contributes to its good compliance profile.

**Why Each Wrong Option is Incorrect**
**Option A:** Lovastatin has a half-life of approximately 2-3 hours, making it an incorrect answer.
**Option B:** simvastatin has a half-life of approximately 2 hours, making it an incorrect answer.
**Option C:** Pravastatin has a half-life of approximately 2 hours, making it an incorrect answer.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that the half-life of a drug can impact its clinical efficacy and compliance. A longer half-life can result in better therapeutic effects and improved patient adherence to treatment.

**Correct Answer:** C. Pravastatin.