During depression of freezing point in a solution, the following are in equilibrium:

Options

A. Liquid solvent,solid solvent
B. Liquid solvent, solid solute
C. Liquid solute, solid solute
D. Liquid solute, solid solvent

Explanation

To solve the question regarding the equilibrium during the depression of freezing point in a solution, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Freezing Point Depression**:
- Freezing point depression occurs when a solute is added to a solvent, resulting in a lower freezing point than that of the pure solvent.

2. **Identifying Phases at Freezing Point**:
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