The resistance of a wire is given by `100Omega`
The specific resistance is proportional to:

Options

A. L
B. R
C. A
D. None of these

Explanation

To solve the question regarding the specific resistance (also known as resistivity) and its proportionality, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Resistance Formula**:
The resistance \( R \) of a wire is given by the formula:
\[ R = \frac{\rho l}{A} \]
where:
- \( R \) is the resistance,
- \( \rho \) is the specific resistance (resistivity),
- \( l \) is the length of the wire,
- \( A \) is the cross-sectional area of the wire.

2. **Identifying the Variables**:
From the formula, we can see that the specific resistance \( \rho \) is related to the resistance \( R \), length \( l \), and area \( A \). However, we need to determine what specific resistance is proportional to.

3. **Analyzing the Proportionality**:
- The specific resistance \( \rho \) is a property of the material and does not depend on the dimensions of the wire (length and area).
- Since \( R \) depends on both \( l \) and \( A \), changing these will change \( R \) but not \( \rho \).

4. **Conclusion**:
Since specific resistance \( \rho \) is a material property and does not depend on the dimensions of the wire or the resistance itself, we conclude that it is not proportional to \( R \), \( l \), or \( A \).

5. **Final Answer**:
Therefore, the correct answer is "none of these".