Cations migrate towards it .

Answer

### Step-by-Step Solution:

1. **Understanding Cations**:
- Cations are positively charged ions. They are formed when an atom loses one or more electrons.

2. **Identifying Electrodes**:
- In electrolysis, there are two electrodes: the cathode and the anode.
- The **cathode** is the electrode where reduction occurs and is negatively charged.
- The **anode** is the electrode where oxidation occurs and is positively charged.

3. **Movement of Cations**:
- Since cations are positively charged, they are attracted to the negatively charged electrode.
- Therefore, cations migrate towards the cathode.

4. **Conclusion**:
- The statement "Cations migrate towards it" refers to the cathode, as cations are attracted to the negatively charged electrode.

### Final Answer:
Cations migrate towards the cathode.

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