Select the correct statements regarding the human skeletal from the statements given below:
I. There are a total of 12 ribs in the human skeletal system.
II. Each limb is made up of 30 bones.
III. The axia skeleton consists of 80 bones.
IV. The wrist bones are 8 in number

Options

A. I and II
B. I and III
C. I, III and IV
D. II, III and IV

Answer

To solve the question regarding the human skeletal system, we need to evaluate each statement provided and determine its accuracy.

### Step-by-Step Solution:

1. **Statement I: There are a total of 12 ribs in the human skeletal system.**
- This statement is **incorrect**. Humans have a total of 24 ribs, which are organized into 12 pairs. Each pair consists of one rib on the left and one on the right side of the body.

**Hint:** Remember that ribs come in pairs, and the total number of ribs is double the number of pairs.

2. **Statement II: Each limb is made up of 30 bones.**
- This statement is **correct**. Each limb (including both the upper and lower limbs) consists of 30 bones. This includes bones in the arm (humerus, radius, ulna, carpals, metacarpals, and phalanges) and in the leg (femur, tibia, fibula, tarsals, metatarsals, and phalanges).

**Hint:** Count the bones in the arm and leg separately to verify the total.

3. **Statement III: The axial skeleton consists of 80 bones.**
- This statement is **correct**. The axial skeleton includes the skull (22 bones), vertebral column (26 bones), and rib cage (24 bones), totaling 80 bones.

**Hint:** Break down the axial skeleton into its components to see how they add up to 80.

4. **Statement IV: The wrist bones are 8 in number.**
- This statement is **correct**. The wrist (carpal bones) consists of 8 bones arranged in two rows.

**Hint:** Memorize the number of carpal bones as they are a common fact in human anatomy.

### Conclusion:
- The correct statements regarding the human skeletal system are **II**, **III**, and **IV**. Therefore, the correct answer is that statements II, III, and IV are true.

### Final Answer:
- The correct statements are: **II, III, and IV.**