Which of the following statements is correct?

Options

A. Pectoral girdle is the region where legs are attached to the hips.
B. Osteoporosis in the childhood is called rickets which is marked by insufficient amount of calcium in the bones.
C. Vertebral column of man has more number of vertebrae than that of woman.
D. Snail moves with the help of muscular foot.

Explanation

To determine which of the statements is correct, we will evaluate each statement one by one.

### Step-by-step Solution:

1. **Evaluate the First Statement:**
- The statement claims that "the pectoral girdle is the region where legs are attached to hips."
- This statement is **incorrect** because the pectoral girdle is actually the structure that supports the arms and is not related to the legs. The correct term for the region where the legs are attached to the hips is the **pelvic girdle**.

2. **Evaluate the Second Statement:**
- The statement claims that "osteoporosis in childhood is called rickets, which is marked by insufficient amounts of calcium in bones."
- This statement is also **incorrect**. The correct term for the condition in children characterized by insufficient calcium in bones is **rickets**, while osteoporosis typically refers to bone density loss in older adults.

3. **Evaluate the Third Statement:**
- The statement claims that "the vertebral column of man has more number of vertebrae than that of woman."
- This statement is **incorrect** as well. Both men and women have the same number of vertebrae in their vertebral columns, which is typically 33.

4. **Evaluate the Fourth Statement:**
- The statement claims that "snail moves with the help of a muscular foot."
- This statement is **correct**. Snails do indeed move using a muscular foot, which allows them to glide along surfaces.

### Conclusion:
The correct statement among the options provided is: **"Snail moves with the help of a muscular foot."**

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