The growth of the given system per unit time expressed on a common basis , per unit initial parameter is called .

Options

A. Absolute growth rate
B. Arithematicgrowth
C. Relative growth rate
D. Geometric growth

Answer

To solve the question, we need to identify the term that describes the growth of a system per unit time, expressed on a common basis, per unit initial parameter. Let's break down the options provided and analyze them step by step.

### Step-by-Step Solution:

1. **Understanding the Question**:
- The question asks for a specific term related to growth measurement. It mentions "per unit time," "common basis," and "per unit initial parameter."

2. **Analyzing the Options**:
- **Option 1: Absolute Growth Rate**:
- This term refers to the total growth of a system without considering the initial size or parameter. It measures the total change over a period but does not express it per unit initial parameter. Hence, this option is incorrect.

- **Option 2: Arithmetic Growth**:
- Arithmetic growth refers to growth that is measured over time and expressed on a common basis. It considers the initial size of the system and provides a per unit time measurement. This aligns with the question's requirements, making this option likely correct.

- **Option 3: Relative Growth**:
- Relative growth compares the growth of one organism to another. It does not focus on the per unit initial parameter of a single system, so this option is also incorrect.

- **Option 4: Geometric Growth**:
- Geometric growth typically involves exponential growth patterns and does not fit the description given in the question. Therefore, this option is also incorrect.

3. **Conclusion**:
- After analyzing all the options, the term that fits the description of growth per unit time expressed on a common basis per unit initial parameter is **Arithmetic Growth**.

### Final Answer:
The correct answer is **Arithmetic Growth**.