The major insect body parts are :

Options

A. head, cephalothorax, and abdomen
B. cephalothorax, midsection, and abdomen
C. head, thorax, and abdomen
D. head, prothorax, and metathorax

Explanation

To answer the question about the major insect body parts, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Major Body Parts of Insects**: Insects have three primary body regions: the head, thorax, and abdomen.

2. **Examine the Options Provided**:
- **Option 1**: Head, cephalothorax, and abdomen
- **Option 2**: Cephalothorax, midsection, and abdomen
- **Option 3**: Head, thorax, and abdomen
- **Option 4**: Head, prothorax, and metathorax

3. **Analyze Each Option**:
- **Option 1**: Includes "cephalothorax," which is not a standard term used for insects (it is more relevant to certain crustaceans). Therefore, this option is incorrect.
- **Option 2**: Also includes "cephalothorax" and "midsection," which do not accurately represent the major parts of an insect. This option is incorrect.
- **Option 3**: Lists "head," "thorax," and "abdomen." This accurately describes the major body parts of insects. This option is correct.
- **Option 4**: Mentions "prothorax" and "metathorax," which are subdivisions of the thorax, but does not mention the thorax as a whole. Therefore, this option is also incorrect.

4. **Conclusion**: The correct answer is **Option 3: Head, thorax, and abdomen**.

### Final Answer:
The major insect body parts are: **Head, thorax, and abdomen**.

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