**Core Concept**
The question is referring to the treatment of Congenital Talipes Equinovarus (CTEV), also known as clubfoot. The correct answer will involve the timing of the Ponseti method, a widely accepted treatment protocol for CTEV. This protocol involves a series of manipulations and casting to gradually correct the deformity.

**Why the Correct Answer is Right**
The Ponseti method is initiated at a very young age, typically within the first few weeks of life. This early intervention is crucial for the success of the treatment. The method involves a series of manipulations to gently stretch the tendons and ligaments, followed by casting to maintain the corrected position. The goal is to gradually reduce the deformity and promote normal foot development. The method is based on the understanding of the embryological development of the foot and the pathophysiology of CTEV.

**Why Each Wrong Option is Incorrect**
**Option A:** This is incorrect because the Ponseti method is not typically initiated at this age. Starting treatment too late can make it more challenging to achieve a good outcome.
**Option B:** This is incorrect because the Ponseti method is not a surgical procedure. While surgery may be necessary in some cases, the initial treatment is non-invasive.
**Option C:** This is incorrect because the Ponseti method is not a single treatment session. It involves a series of manipulations and cast changes over several weeks.

**Clinical Pearl / High-Yield Fact**
It is essential for parents and caregivers to be involved in the treatment process, as they will need to perform daily manipulations and cast changes at home. A good understanding of the treatment protocol and the importance of early intervention is crucial for a successful outcome.

**Correct Answer: C. 6 weeks.**