A give dicot family consists of several genera which are

Options

A. Only `C_3` plants
B. Only `C_4` plants
C. `C_3` (or ) `C_4` plants
D. `C_3` & `C_4` plants

Answer

To solve the question regarding the dicot family and the types of plants it consists of, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Dicot**:
- A dicot, short for dicotyledon, is a type of flowering plant that has two cotyledons (seed leaves) in its seed. This is a key characteristic that distinguishes dicots from monocots (which have one cotyledon).

2. **Identify the Types of Photosynthetic Pathways**:
- There are two main types of photosynthetic pathways in plants:
- **C3 Plants**: These plants use the C3 carbon fixation pathway, which is the most common form of photosynthesis.
- **C4 Plants**: These plants utilize the C4 carbon fixation pathway, which is an adaptation to high light intensity and temperature, allowing for more efficient photosynthesis in certain conditions.

3. **Consider the Dicot Family**:
- The dicot family includes a wide variety of genera and species. It encompasses many flowering plants, which can be either C3 or C4 plants.

4. **Evaluate the Options Given**:
- The options provided are:
- A) Only C3 plants
- B) Only C4 plants
- C) C3 or C4 plants
- D) C3 and C4 plants
- Based on our understanding, dicots can include both C3 and C4 plants, so we need to analyze the options.

5. **Select the Correct Option**:
- Option A (Only C3 plants) is incorrect because not all dicots are C3.
- Option B (Only C4 plants) is also incorrect for the same reason.
- Option C (C3 or C4 plants) is correct because dicots can be either type.
- Option D (C3 and C4 plants) is misleading as it implies that all dicots must be both, which is not necessarily true.

### Conclusion:
The correct answer is **Option C: C3 or C4 plants**.

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