Select the correct statement.

Options

A. A gel is a system in which one component, at least, has a low rigidity and at least one component has high mobility
B. A surfactant is an amphipathic substance that is it has both hydrophobic and hydrophilic regions
C. Both (1) and (2)
D. None of these

Answer

To solve the question, we need to analyze the two statements provided and determine their correctness.

### Step-by-Step Solution:

1. **Analyze Statement 1**:
- The statement claims that "a gel is a system in which one component at least has a low rigidity and at least one component has high mobility."
- A gel is a colloidal system where the dispersed phase is liquid and the dispersion medium is solid.
- In this context, the solid (dispersion medium) is indeed rigid, while the liquid (dispersed phase) is mobile.
- Therefore, this statement is **incorrect** because it incorrectly describes the rigidity and mobility of the components in a gel.

2. **Analyze Statement 2**:
- The statement claims that "a surfactant is an amphipathic substance that is it has both hydrophobic and hydrophilic regions."
- Surfactants, such as sodium stearate (C17H35COONa), consist of a long hydrocarbon chain (which is hydrophobic) and a polar ionic part (which is hydrophilic).
- This means surfactants do indeed have both hydrophobic and hydrophilic regions, making this statement **correct**.

3. **Conclusion**:
- Since Statement 1 is incorrect and Statement 2 is correct, the correct answer to the question is that only Statement 2 is true.
- Thus, the correct option is that only Statement 2 is correct.

### Final Answer:
- **Only Statement 2 is correct.**