`W_(1) = W_(0)` ert is the expression of exponential growth , in which r denotes .

Options

A. Initial growth
B. Final growth
C. Relative growth rate
D. Base of natural logarithms

Answer

To solve the question regarding the expression of exponential growth \( W_1 = W_0 e^{rt} \) and what \( r \) denotes, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding the Equation**: The equation \( W_1 = W_0 e^{rt} \) represents exponential growth, where:
- \( W_1 \) is the final size (weight, height, number, etc.).
- \( W_0 \) is the initial size.

**Hint**: Identify the components of the equation to understand their meanings.

2. **Identifying the Base**: In the equation, \( e \) is the base of the natural logarithm. This is a constant approximately equal to 2.71828.

**Hint**: Recall that \( e \) is a mathematical constant used in exponential functions.

3. **Understanding \( r \)**: The variable \( r \) in the equation represents the growth rate. It indicates how quickly the growth occurs over time.

**Hint**: Think about what growth rate means in the context of population or size changes.

4. **Understanding \( t \)**: The variable \( t \) represents time. It indicates the duration over which the growth occurs.

**Hint**: Consider how time influences growth in biological systems.

5. **Final Interpretation**: Since the question specifically asks what \( r \) denotes, we conclude that \( r \) represents the relative growth rate.

**Hint**: Look for options that align with the definition of growth rate in the context of the equation.

### Conclusion:
The correct answer is that \( r \) denotes the **relative growth rate**.