A solution that obeys Raoult’s law is:

Options

A. Normal
B. Molar
C. Ideal
D. Saturated

Answer

To solve the question "A solution that obeys Raoult’s law is:", let's analyze the options provided and apply our understanding of Raoult's law.

### Step-by-Step Solution:

1. **Understanding Raoult's Law**:
- Raoult's law states that the vapor pressure of a solvent in a solution is directly proportional to the mole fraction of the solvent in the solution. It applies to ideal solutions where the interactions between the molecules of different components are similar to the interactions among the molecules of each component.

2. **Identifying Ideal Solutions**:
- Ideal solutions are those that follow Raoult's law over the entire range of concentrations. In these solutions, the solute-solvent interactions are similar to solute-solute and solvent-solvent interactions.

3. **Analyzing the Options**:
- **Option A: Normal** - This term does not specifically refer to a type of solution in the context of Raoult's law.
- **Option B: Molar** - This term refers to concentration but does not define a type of solution that obeys Raoult's law.
- **Option C: Ideal** - This is the correct term for solutions that obey Raoult's law.
- **Option D: Saturated** - Saturated solutions contain the maximum amount of solute that can dissolve at a given temperature, and they do not necessarily obey Raoult's law.

4. **Conclusion**:
- Based on the analysis, the correct answer is **Option C: Ideal**. Ideal solutions are those that obey Raoult's law.

### Final Answer:
The solution that obeys Raoult’s law is **Option C: Ideal**.