**Core Concept**
Orchidopexy is a surgical procedure performed to relocate an undescended testis into the scrotum. The ideal time for orchidopexy is crucial to prevent potential complications, such as testicular cancer and infertility. The underlying principle is to promote testicular development and function while minimizing the risk of malignant transformation.

**Why the Correct Answer is Right**
The optimal time for orchidopexy is before the child reaches the age of 1 year. This is because the risk of testicular cancer and malignant transformation increases with age. Performing the procedure before 1 year allows for normal testicular development and minimizes the risk of complications. The Leydig cells in the testis produce androgens, which are essential for normal testicular development. Orchidopexy before 1 year helps maintain the normal hormonal balance and promotes healthy testicular growth.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because performing orchidopexy after 1 year increases the risk of testicular cancer and malignant transformation. The risk of complications is higher in older children and adolescents.
**Option B:** This option is incorrect because the current consensus is that orchidopexy should be performed before 1 year, not after 1 year. Performing the procedure after 1 year may not provide the same benefits as performing it earlier.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the American Academy of Pediatrics recommends orchidopexy before 1 year of age to prevent potential complications. Early intervention can significantly improve outcomes and reduce the risk of testicular cancer and infertility.

**Correct Answer: C. Before 1 year of age.**