**Core Concept**
Orchidopexy, also known as orchiopexy, is a surgical procedure to correct undescended testes, where one or both testes have not moved into their normal position in the scrotum. This condition, known as cryptorchidism, can increase the risk of testicular cancer and infertility.

**Why the Correct Answer is Right**
The optimal age for orchidopexy is between 6 and 12 months of age. Early intervention is recommended to minimize the risk of testicular cancer and to improve fertility outcomes. The procedure involves bringing the testis into the scrotum and securing it in place with sutures. This is typically done through a small incision in the groin area.

**Why Each Wrong Option is Incorrect**
**Option A:**
This option is incorrect because it does not specify a correct age for orchidopexy.

**Option B:**
This option is incorrect because it does not provide a valid reason for performing orchidopexy at this age.

**Option C:**
This option is incorrect because it is not a recommended age for orchidopexy.

**Clinical Pearl / High-Yield Fact**
It is essential to perform orchidopexy before the child reaches 12 months of age, as the risk of testicular cancer and infertility increases significantly after this age.

**Correct Answer:** C.