Information
Semipermeable membrane contains network of submacroscopic holes or pores.
Semipermeable membrane appears to be continuous sheets or films.
Solvent molecule cannot pass through the holes of semipermeable membrane but solute molecule can pass.
On the basis of the information given above select the correct option.

Options

A. Only I
B. Only II
C. Only III
D. All of these

Answer

To solve the question based on the information provided about semipermeable membranes, we need to analyze the characteristics of such membranes and determine the implications of the statements given.

### Step-by-Step Solution:

1. **Understanding Semipermeable Membranes**:
- A semipermeable membrane is a barrier that allows certain molecules to pass through while blocking others. In this case, it allows solute molecules to pass but not solvent molecules.

2. **Characteristics of the Membrane**:
- The membrane has a network of submacroscopic holes or pores. This means that while it appears as a continuous sheet, it has tiny openings that facilitate the movement of specific particles.

3. **Solvent and Solute Behavior**:
- According to the information provided, solvent molecules cannot pass through the holes of the semipermeable membrane, while solute molecules can. This is a crucial point that defines the behavior of the membrane.

4. **Selecting the Correct Option**:
- Based on the understanding that solute molecules can pass through while solvent molecules cannot, we need to look for an option that reflects this behavior.

5. **Conclusion**:
- The correct option should state that the semipermeable membrane selectively allows solute molecules to pass through while blocking solvent molecules.