**Core Concept**
The question pertains to the timing of suture removal following a cleft lip repair surgery, which is a crucial aspect of pediatric plastic surgery. Cleft lip repair aims to restore the oral-facial continuity and facilitate normal feeding, speech, and aesthetic outcomes.

**Why the Correct Answer is Right**
The correct timing of suture removal is essential to prevent complications such as scarring, infection, and tissue damage. Typically, sutures in cleft lip repair are removed between 5 to 7 days post-operatively. This allows for adequate wound healing, minimizes the risk of wound dehiscence, and promotes optimal scar formation.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as sutures are usually removed too early, which may lead to wound dehiscence and poor scar formation.
**Option B:** This option is incorrect as sutures are left in for an excessively long period, which may result in tissue damage, scarring, and delayed healing.
**Option C:** This option is incorrect as the timing of suture removal can vary depending on individual patient factors, but 5 to 7 days is generally considered optimal.

**Clinical Pearl / High-Yield Fact**
A common mnemonic to remember the timing of suture removal in cleft lip repair is "5-7 days, don't be late, or you'll create a poor fate."

**Correct Answer: C. 7 days**