**Core Concept**
Inguinal hernias in children are typically caused by a patent processus vaginalis, an open communication between the abdominal cavity and the scrotum. The treatment of choice aims to close this patent processus vaginalis to prevent further complications.

**Why the Correct Answer is Right**
Herniotomy alone is the preferred treatment for inguinal hernias in children because it involves the simple closure of the patent processus vaginalis. This procedure is usually effective in preventing future hernias and is less invasive compared to other repair techniques. In children, the hernia sac is typically small and can be easily closed without the need for mesh or extensive tissue repair.

**Why Each Wrong Option is Incorrect**
**Option A:** Bassini's repair is an older technique that involves suturing the posterior wall of the inguinal canal to prevent herniation. However, it is not the preferred treatment for children due to its higher risk of complications and recurrence.
**Option B:** Shouldice repair is a more complex technique that involves suturing the posterior wall of the inguinal canal and reinforcing it with a series of figure-of-eight sutures. While it is effective for adults, it is not the treatment of choice for children due to its invasiveness and higher risk of complications.
**Option D:** Lichtenstein repair involves the use of a mesh to reinforce the posterior wall of the inguinal canal. While it is effective for adults, it is not typically used in children due to the risk of mesh erosion and other complications.

**Clinical Pearl / High-Yield Fact**
In children, inguinal hernias are often associated with a patent processus vaginalis, which can also lead to undescended testes. Therefore, it is essential to evaluate for undescended testes in children with inguinal hernias and to consider orchiopexy as part of the treatment plan.

**✓ Correct Answer: C. Herniotomy alone**