**Core Concept**
Protein synthesis is a complex process involving several enzymes and steps to convert a genetic code into a functional protein. The process begins with transcription, where a DNA template is used to synthesize a complementary RNA molecule, and proceeds through translation, where the RNA molecule is read in codons to assemble amino acids into a polypeptide chain.

**Why the Correct Answer is Right**
The correct answer involves several key enzymes that participate in protein synthesis. **Ribosomal RNA (rRNA) synthetase** and **elongation factor** are crucial for the initiation, elongation, and termination of protein synthesis. rRNA synthetase is responsible for the synthesis of rRNA, which is a major component of ribosomes, the cellular machinery for protein synthesis. Elongation factor, on the other hand, helps to position the incoming aminoacyl-tRNA onto the ribosome during the elongation phase of protein synthesis.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not mention any specific enzyme involved in protein synthesis.
* **Option B:** This option is incorrect as it does not mention rRNA synthetase or elongation factor, which are crucial for protein synthesis.
* **Option C:** This option is incorrect as it mentions a general term but does not specify the enzymes involved in protein synthesis.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that protein synthesis is a highly regulated process, and any disruption in this process can lead to various diseases, including genetic disorders and cancer.

**Correct Answer: C. Ribosomal RNA (rRNA) synthetase and elongation factor.**