**Core Concept**
The poly(A) tail of messenger RNA (m-RNA) is a sequence of adenine nucleotides that plays a crucial role in mRNA stability, localization, and translation. It is added to the 3' end of m-RNA during post-transcriptional modification.

**Why the Correct Answer is Right**
The poly(A) tail does not encode a polypeptide directly but serves as a signal for the translation machinery. However, the poly(A) tail is translated into a specific polypeptide due to its sequence being recognized by the poly(A) binding protein (PABP). The poly(A) tail is translated into poly(A)-binding protein (PABP) itself, which binds to the poly(A) tail and facilitates translation. This process is mediated by the internal ribosome entry site (IRES) of the PABP mRNA, allowing the translation of the poly(A) tail into PABP.

**Why Each Wrong Option is Incorrect**
* **Option A:** This is not a known translation product of the poly(A) tail.
* **Option B:** This is not directly related to the poly(A) tail or its translation.
* **Option C:** This is not a correct translation product of the poly(A) tail.

**Clinical Pearl / High-Yield Fact**
The poly(A) tail plays a crucial role in mRNA stability and translation, and its translation into PABP is a unique example of how a non-coding sequence can be translated into a protein.

**Correct Answer: C. Poly(A)-binding protein (PABP)**