## Core Concept
The question tests knowledge of molecular biology techniques, specifically those used for analyzing RNA. Immunoblotting, also known as Western blotting, is a well-known technique for analyzing proteins. However, when it comes to analyzing RNA, a similar concept but distinct technique is utilized.

## Why the Correct Answer is Right
The correct answer, Northern blotting, is a laboratory technique used to detect and study RNA molecules. It involves separating RNA samples according to size using electrophoresis, transferring them to a membrane, and then hybridizing them with labeled probes to detect specific RNA sequences. This technique is analogous to Southern blotting for DNA and Western blotting for proteins.

## Why Each Wrong Option is Incorrect
* **Option A:** This option is blank and does not provide any information.
* **Option B:** This option is also blank and does not provide any relevant technique name.
* **Option C:** This option is blank as well, not offering a valid technique.
* **Option D:** This option is blank too, and does not correspond to a recognized method for RNA analysis.

## Clinical Pearl / High-Yield Fact
A key point to remember is that there are three main types of blotting techniques in molecular biology:
- **Southern blotting** for DNA analysis,
- **Northern blotting** for RNA analysis, and
- **Western blotting** for protein analysis.

## Correct Answer Line
**Correct Answer: C. Northern blotting.**