**Core Concept**
Effective topical antimicrobial therapy in burn patients is crucial to prevent infection. The choice of antibiotic agent depends on its ability to penetrate burn eschar and reach the interface with the patient's viable tissue. This requires the antibiotic to have the right properties, such as lipophilicity and molecular weight.

**Why the Correct Answer is Right**
Silver sulfadiazine (C) is a commonly used topical antibiotic in burn patients. It has been shown to penetrate burn eschar and reach the interface with the patient's viable tissue, making it effective in preventing infection. This is due to its lipophilic nature, which allows it to penetrate the eschar, and its ability to release sulfonamide, which has antimicrobial properties.

**Why Each Wrong Option is Incorrect**
**Option A:** Mafenide acetate is another topical antibiotic used in burn patients, but it is not known for its ability to penetrate burn eschar as effectively as silver sulfadiazine.

**Option B:** Neomycin is an aminoglycoside antibiotic, but it is not typically used topically in burn patients due to its potential for nephrotoxicity.

**Option D:** Bacitracin is a topical antibiotic, but it is not commonly used in burn patients and is not known for its ability to penetrate burn eschar.

**Clinical Pearl / High-Yield Fact**
Silver sulfadiazine is often used in combination with other treatments, such as dressings and debridement, to manage burn wounds and prevent infection. It is essential to choose the right antibiotic agent based on the patient's specific needs and the properties of the agent.

**Correct Answer: C. Silver sulfadiazine**