To solve the question regarding the secretions of hepatic, chief, oxyntic, and goblet cells, we can follow these steps:
### Step 1: Identify the secretions of each cell type.
- **Hepatic Cells**: These cells are located in the liver and are responsible for the secretion of **bile**. Bile is essential for the emulsification of fats in the digestive process.
- **Chief Cells**: Found in the stomach, chief cells secrete **pepsinogen**, which is an inactive enzyme that gets converted to pepsin in the acidic environment of the stomach. Pepsin is crucial for protein digestion.
- **Oxyntic Cells**: Also known as parietal cells, these cells secrete **hydrochloric acid (HCl)**, which creates an acidic environment in the stomach necessary for digestion and activating pepsinogen.
- **Goblet Cells**: These cells are found in the intestinal lining and secrete **mucus**. Mucus serves to protect the lining of the intestines and aids in the movement of food through the digestive tract.
### Step 2: Match the secretions with the corresponding cells.
From the information gathered:
- Hepatic Cells → Bile (I)
- Chief Cells → Pepsinogen (II)
- Oxyntic Cells → HCl (III)
- Goblet Cells → Mucus (IV)
### Step 3: Analyze the options provided.
Now we can look at the options given in the question to find the correct match:
1. **Bile, Pepsinogen, HCl, Mucus** - This matches perfectly with the secretions identified.
2. **Mucus, Bile, Pepsinogen, HCl** - This does not match as the order is incorrect.
3. **Pepsinogen, HCl, Mucus, Bile** - This does not match as the order is incorrect.
4. **HCl, Mucus, Bile, Pepsinogen** - This does not match as the order is incorrect.
### Conclusion:
The only option that correctly completes the secretions of the four cells is the first option: **Bile, Pepsinogen, HCl, Mucus**.
