Which of the following is correct

Options

A. Axial skeletal system of human consist 80 bones
B. Human have 12 pairs of Ribs
C. 6 ear ossicle present in human
D. All are Correct

Answer

To solve the question "Which of the following is correct?", we need to evaluate each of the options provided in the context of human anatomy, specifically focusing on the axial skeleton, ribs, and ear ossicles.

### Step-by-Step Solution:

1. **Evaluate Option 1: Axial Skeleton**
- The axial skeleton in humans consists of 80 bones. This includes the skull, vertebral column, sternum, and ribs.
- **Conclusion:** Option 1 is correct.

2. **Evaluate Option 2: Pairs of Ribs**
- Humans have 12 pairs of ribs. These include:
- 7 pairs of true ribs (attached directly to the sternum).
- 3 pairs of false ribs (8th, 9th, and 10th ribs, which are attached to the 7th rib).
- 2 pairs of floating ribs (11th and 12th ribs, which are not attached to the sternum).
- **Conclusion:** Option 2 is correct.

3. **Evaluate Option 3: Ear Ossicles**
- Humans have 3 ossicles in each ear: the malleus, incus, and stapes. Therefore, in both ears, there are a total of 6 ossicles.
- **Conclusion:** Option 3 is correct.

4. **Evaluate Option 4: Overall Correctness**
- Since all three options (1, 2, and 3) are correct, it follows that option 4, which states that all the previous options are correct, must also be correct.
- **Conclusion:** Option 4 is correct.

### Final Answer:
- The correct option is **Option 4**, as all the previous statements (1, 2, and 3) are true.