**Core Concept**
Toll-like receptors (TLRs) are a family of pattern recognition receptors that play a crucial role in the recognition of pathogen-associated molecular patterns (PAMPs) and activation of the innate immune response. In the context of viral infections, TLRs recognize viral components such as double-stranded RNA (dsRNA), single-stranded RNA (ssRNA), and viral DNA.

**Why the Correct Answer is Right**
The correct answer is TLR3, which is specifically associated with the recognition of double-stranded RNA (dsRNA) produced during viral replication. TLR3 recognizes dsRNA through its extracellular domain and activates the MyD88-dependent signaling pathway, leading to the production of type I interferons (IFN-α/β) and other pro-inflammatory cytokines. This activation of the innate immune response helps to limit viral replication and promote an adaptive immune response.

**Why Each Wrong Option is Incorrect**
* **Option A:** TLR1 is primarily associated with the recognition of bacterial lipopeptides and does not play a significant role in viral recognition.
* **Option B:** TLR2 is involved in the recognition of bacterial cell wall components, such as lipoteichoic acid and peptidoglycan, but is not specifically associated with viral recognition.
* **Option C:** TLR9 recognizes unmethylated CpG DNA motifs found in bacterial and viral genomes, but is not the primary TLR associated with viral recognition.

**Clinical Pearl / High-Yield Fact**
Toll-like receptors, including TLR3, play a crucial role in the recognition of viral infections and activation of the innate immune response. Understanding the specific TLRs involved in viral recognition can help inform the development of targeted therapies and vaccines.

**Correct Answer:** C.