Six of the 206 bones of human skeleton occur in

Options

A. Skull
B. Middle ear
C. Pectoral girdle
D. Pelvic girdle.

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks about the location of 6 out of the 206 bones in the human skeleton.

2. **Identify the Options**: The options provided are:
- Skull
- Middle ear
- Pectoral girdle
- Pelvic girdle

3. **Recall the Structure of the Human Skeleton**: The human skeleton is made up of 206 bones, which are categorized into different regions including the skull, vertebral column, ribs, pectoral girdle, pelvic girdle, and limbs.

4. **Analyze Each Option**:
- **Skull**: The skull contains 22 bones, including cranial and facial bones, but does not contain 6 bones in a specific area.
- **Pectoral Girdle**: The pectoral girdle consists of 4 bones (2 clavicles and 2 scapulae).
- **Pelvic Girdle**: The pelvic girdle consists of 2 hip bones (each made of 3 fused bones).
- **Middle Ear**: The middle ear contains 3 tiny bones known as ossicles (malleus, incus, stapes) in each ear. Therefore, there are a total of 6 bones in both ears (3 bones per ear).

5. **Conclude the Correct Answer**: Since the middle ear contains 6 bones (3 in each ear), the correct answer is the **middle ear**.

**Final Answer**: The correct option is **middle ear**.

---