Framework elements are

Options

A. Non-metal minerals
B. Nonminerals
C. Mixed
D. Metals.

Answer

### Step-by-Step Solution

1. **Understanding Framework Elements**:
- Framework elements are essential components that form the structural basis of living organisms, including plants and animals. They play a significant role in the formation of various macromolecules.

2. **Identifying the Key Framework Elements**:
- The primary framework elements are Carbon (C), Hydrogen (H), and Oxygen (O). These elements are integral to the structure of biomolecules.

3. **Role in Biomolecules**:
- These elements are involved in the formation of carbohydrates, proteins, fats, and nucleic acids.
- For example, in plants, carbohydrates like cellulose and starch are formed from these elements.
- In animals, glycogen is formed, which is also a carbohydrate.

4. **Analyzing the Options**:
- The options provided are:
- A) Non-metal minerals
- B) Non-minerals
- C) Mixed metals
- We need to determine which option correctly describes framework elements.

5. **Evaluating Each Option**:
- **Option A (Non-metal minerals)**: Incorrect, as framework elements are not classified as minerals.
- **Option B (Non-minerals)**: Correct, as Carbon, Hydrogen, and Oxygen are not minerals.
- **Option C (Mixed metals)**: Incorrect, since these elements are not metals.

6. **Conclusion**:
- The correct answer is **Option B: Non-minerals**. Framework elements are indeed classified as non-minerals.