## **Core Concept**
The question tests understanding of the innate immune response, specifically the role of different cells in removing bacteria during an infection. The scenario describes a common infection where bacteria invade the extracellular matrix around capillaries, triggering an inflammatory response.

## **Why the Correct Answer is Right**
The correct answer, **Neutrophils**, are a type of white blood cell crucial in the initial defense against infections, especially bacterial infections. They are highly motile and can quickly move to sites of infection. Neutrophils use various mechanisms to eliminate bacteria, including phagocytosis, where they engulf and digest bacterial cells, and the release of granules that contain enzymes and antimicrobial peptides. Their ability to migrate into the extracellular matrix around capillaries makes them effective in addressing infections in such areas.

## **Why Each Wrong Option is Incorrect**
- **Option A: Macrophages** are also involved in the removal of bacteria and cellular debris but are more involved in the later stages of inflammation and in the adaptive immune response. While they do play a role in phagocytosis, they are not the first line of defense in acute bacterial infections.
- **Option B: Eosinophils** are primarily involved in combating parasitic infections and in allergic reactions. They are not the primary cells responsible for removing bacteria.
- **Option D: Lymphocytes** are key components of the adaptive immune system. They are not primarily involved in the initial removal of bacteria during the innate immune response.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **neutrophils are the hallmark of acute inflammation**, especially in response to bacterial infections. Their count often rises significantly in acute bacterial infections, making them a critical marker for diagnosing and managing such cases.

## **Correct Answer: C. Neutrophils**