**Core Concept**
Cefepime is a fourth-generation cephalosporin antibiotic, known for its broad-spectrum activity against both Gram-positive and Gram-negative bacteria. Its unique structure allows it to maintain efficacy in the presence of beta-lactamase enzymes produced by resistant bacteria.

**Why the Correct Answer is Right**
Cefepime works by inhibiting cell wall synthesis in bacteria, ultimately leading to cell lysis and death. Its mechanism of action involves binding to penicillin-binding proteins (PBPs) on the bacterial cell wall, preventing the cross-linking of peptidoglycan layers. This is particularly effective against bacteria that produce extended-spectrum beta-lactamases (ESBLs), which confer resistance to many other beta-lactam antibiotics. The unique structure of cefepime allows it to maintain its activity in the presence of these enzymes.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because cefepime is not primarily a bacteriostatic agent; it is bactericidal, meaning it directly kills bacteria rather than inhibiting their growth.
**Option B:** This option is incorrect because cefepime is not typically used to treat tuberculosis; it is more commonly used to treat a variety of bacterial infections, including pneumonia, urinary tract infections, and sepsis.
**Option C:** This option is incorrect because cefepime is not specifically indicated for the treatment of methicillin-resistant Staphylococcus aureus (MRSA); it has activity against some strains of MRSA, but it is not the first-line treatment.

**Clinical Pearl / High-Yield Fact**
Cefepime is often used in combination with other antibiotics to treat complicated infections, such as sepsis or meningitis, due to its broad-spectrum activity and ability to penetrate into cerebrospinal fluid.

**Correct Answer:** C.