Which one of the following items gives its correct total number

Options

A. Cervical vertebrae in human - 8
B. Floating ribs in human - 4
C. Amino acids found in proteins - 16
D. Types of diabetes - 3

Answer

To solve the question regarding which item gives its correct total number, we will analyze each option one by one.

### Step-by-Step Solution:

1. **Cervical Vertebrae in Humans**:
- The cervical vertebrae are located in the neck region of humans.
- There are a total of **7 cervical vertebrae**, not 8.
- Therefore, this option is incorrect.

2. **Floating Ribs in Humans**:
- Humans have a total of **12 pairs of ribs**.
- The floating ribs are specifically the **11th and 12th pairs** of ribs.
- Since there are 2 pairs of floating ribs, the total number is **2 pairs** which equals **4 ribs**.
- This option is correct.

3. **Amino Acids Found in Proteins**:
- Proteins are made up of **20 different amino acids**.
- The statement mentions **16 amino acids**, which is incorrect.
- Therefore, this option is also incorrect.

4. **Types of Diabetes**:
- There are primarily **2 types of diabetes**:
- Diabetes Mellitus
- Diabetes Insipidus
- The statement mentions **3 types**, which is incorrect.
- Therefore, this option is incorrect.

### Conclusion:
The only correct option from the provided items is the **floating ribs in humans**, which total **4**.