**Core Concept**
The condition described is anorectal malformation, a congenital anomaly where the rectum and anus do not develop properly, leading to an absent or displaced anal opening. This condition requires prompt surgical intervention to prevent complications such as bowel obstruction, infection, and long-term sequelae.

**Why the Correct Answer is Right**
The most appropriate management for anorectal malformation involves immediate surgical intervention to create a colostomy to divert the fecal stream, followed by definitive repair. The goal is to restore normal bowel function and prevent complications. The surgical approach may involve a posterior sagittal anorectoplasty (PSARP) or an anterior sagittal anorectoplasty (ASARP), depending on the severity of the malformation.

**Why Each Wrong Option is Incorrect**
* **Option A:** Conservative management with bowel rest and observation is not appropriate for anorectal malformation, as it can lead to bowel obstruction, necrosis, and long-term complications.
* **Option B:** Administration of laxatives or enemas is not effective in managing anorectal malformation, as it may cause further bowel injury and infection.
* **Option C:** Delaying surgical intervention until the baby is older may result in complications such as chronic constipation, fecal incontinence, and long-term bowel dysfunction.
* **Option D:** This option is not provided.

**Clinical Pearl / High-Yield Fact**
It is essential to note that anorectal malformations are often associated with other congenital anomalies, such as spinal dysraphism, renal anomalies, and cardiac defects, making a thorough evaluation and multidisciplinary approach crucial for optimal management.

**Correct Answer:** C.