**Core Concept**
T cells, a type of lymphocyte, play a crucial role in cell-mediated immunity. The receptors present on T cells are essential for their activation and function. Specifically, T cells express a unique type of receptor that allows them to recognize and interact with antigens.

**Why the Correct Answer is Right**
The correct answer is **TCR (T-cell receptor)**. The TCR is a heterodimeric receptor composed of alpha and beta chains, which recognize antigens presented by major histocompatibility complex (MHC) molecules on antigen-presenting cells. This recognition is mediated by the variable regions of the TCR, which undergo somatic recombination to generate a diverse repertoire of antigen-specific receptors. The TCR also interacts with co-receptors, such as CD4 and CD8, which help to stabilize the receptor-ligand interaction and facilitate T cell activation.

**Why Each Wrong Option is Incorrect**
**Option A:** **Fc receptors** are present on various immune cells, including macrophages and neutrophils, and are involved in recognizing and binding to the Fc region of antibodies. These receptors are not present on T cells.
**Option B:** **Complement receptors** are expressed on various immune cells, including neutrophils and macrophages, and are involved in recognizing and binding to complement components. These receptors are not present on T cells.
**Option C:** **FcR-like receptors** are a family of receptors that resemble Fc receptors but have distinct functions and ligand specificities. These receptors are not present on T cells.

**Clinical Pearl / High-Yield Fact**
T cells recognize antigens through the TCR, which undergoes somatic recombination to generate a diverse repertoire of antigen-specific receptors. This process is essential for the development of adaptive immunity and the recognition of self versus non-self antigens.

**Correct Answer: C. TCR (T-cell receptor)**