Match the followings and mark the correct option
`{:("Column I", " ""Column II"),("Sternum",i."Synovial fluid"),("Glenoid Cavity",ii."Vertebrae"),("Freely movable joint",iii."Pectoral girdle"),("Cartilagenous joint",iv. "Flat bones"):}`

Options

A. `{:(A,B,C,D),(2,1,3,4):}`
B. `{:(A,B,C,D),(4,3,1,2):}`
C. `{:(A,B,C,D),(2,1,4,3):}`
D. `{:(A,B,C,D),(4,1,2,4):}`

Explanation

To solve the matching question, we need to analyze each item in Column I and match it with the appropriate item in Column II. Here’s the step-by-step solution:

### Step-by-Step Solution:

1. **Identify the first item: Sternum**
- The sternum is a flat bone located in the center of the chest.
- **Match:** Sternum (Column I) → Flat bones (iv in Column II)

2. **Identify the second item: Glenoid Cavity**
- The glenoid cavity is a depression that articulates with the head of the humerus, forming part of the shoulder joint, which is part of the pectoral girdle.
- **Match:** Glenoid Cavity (Column I) → Pectoral girdle (iii in Column II)

3. **Identify the third item: Freely movable joint**
- Freely movable joints are characterized by the presence of synovial fluid, which allows for a wide range of movement.
- **Match:** Freely movable joint (Column I) → Synovial fluid (i in Column II)

4. **Identify the fourth item: Cartilaginous joint**
- Cartilaginous joints are found between adjacent vertebrae in the vertebral column.
- **Match:** Cartilaginous joint (Column I) → Vertebrae (ii in Column II)

### Summary of Matches:
- Sternum → Flat bones (iv)
- Glenoid Cavity → Pectoral girdle (iii)
- Freely movable joint → Synovial fluid (i)
- Cartilaginous joint → Vertebrae (ii)

### Final Answer:
The correct matches are:
- A → iv
- B → iii
- C → i
- D → ii

Thus, the correct option is **Option 2**.