Secondary roots are generally

Options

A. Diageotropic
B. Positively geotropic
C. Ageotropic
D. Plagio-geotropic.

Answer

To answer the question "Secondary roots are generally," we need to analyze the options provided and understand the concepts of geotropism related to root growth.

### Step-by-Step Solution:

1. **Understanding Geotropism**:
- Geotropism refers to the growth of plant parts in response to gravity. Roots typically exhibit positive geotropism, meaning they grow towards the gravitational pull.

2. **Identifying Types of Geotropism**:
- **Positive Geotropism**: Growth towards gravity (e.g., primary roots).
- **Negative Geotropism**: Growth away from gravity (e.g., some stems).
- **Diageotropism**: Growth at a right angle (90 degrees) to the direction of gravity.
- **Paleogeotropism**: Growth at an angle between 0 and 90 degrees to the direction of gravity.

3. **Analyzing Secondary Roots**:
- Secondary roots generally grow downwards, but they may not grow directly towards gravity. Instead, they can grow at an angle that is not strictly vertical.

4. **Conclusion**:
- Since secondary roots grow at an angle between 0 and 90 degrees with respect to the direction of gravity, they are classified as **Paleogeotropic**.

5. **Final Answer**:
- The correct answer is **D. Paleogeotropic**.