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 regarding the term that describes the growth of a given system per unit time expressed on a common basis, per unit initial parameter, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Growth Rates**:
- We need to clarify the different types of growth rates: absolute growth rate, arithmetic growth rate, relative growth rate, and geometric growth rate.

2. **Absolute Growth Rate**:
- Absolute growth refers to the total growth of a system over a specific period of time, without considering the initial size or parameter of that system. It is simply the change in size over time.

3. **Arithmetic Growth Rate**:
- This type of growth indicates a constant increase over time, where the growth occurs in equal increments. However, it does not take into account the initial size of the system.

4. **Relative Growth Rate**:
- The relative growth rate is defined as the growth of the system per unit time, normalized by the initial size or parameter. This means it considers how much the system grows relative to its starting point, making it a per unit initial parameter measure.

5. **Geometric Growth Rate**:
- Geometric growth involves growth that starts slowly and then accelerates, forming a curve. While it describes a pattern of growth, it does not specifically account for the initial parameter in the same way as relative growth rate.

6. **Conclusion**:
- Based on the definitions and characteristics of each growth type, the correct term that describes the growth of a system per unit time expressed on a common basis, per unit initial parameter is **Relative Growth Rate**.

### Final Answer:
The growth of the given system per unit time expressed on a common basis, per unit initial parameter is called **Relative Growth Rate**.