**Core Concept**
Macrophages play a crucial role in the immune response, particularly in the process of antibody formation, also known as humoral immunity. They act as antigen-presenting cells (APCs), processing and presenting antigens to T-lymphocytes, thereby initiating an immune response.

**Why the Correct Answer is Right**
During antibody formation, macrophages engulf and digest foreign particles, bacteria, or dead cells, releasing antigens that are then processed and presented to T-lymphocytes through major histocompatibility complex (MHC) molecules. This interaction between the macrophage and T-lymphocyte triggers the activation of B-lymphocytes, which mature into plasma cells that produce specific antibodies against the antigen. Macrophages also produce cytokines, such as interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF-alpha), which enhance the activation and proliferation of B-lymphocytes.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect, as B-lymphocytes are responsible for producing antibodies, not macrophages.
**Option B:** Incorrect, as T-lymphocytes are primarily involved in cell-mediated immunity, not antibody formation.
**Option C:** Incorrect, as neutrophils are a type of granulocyte involved in phagocytosis and inflammation, but not directly involved in antibody formation.

**Clinical Pearl / High-Yield Fact**
Macrophages play a critical role in the development of immunological tolerance, as they can also present self-antigens to T-lymphocytes, preventing an autoimmune response.

**Correct Answer: C. Macrophages engulf and digest foreign particles, releasing antigens that are then processed and presented to T-lymphocytes, thereby initiating an immune response.**