Final answer:
California state court judges can be removed from office by voting them out, through action by the Commission on Judicial Performance, or by the recall process. So, the correct answer is option 4) All of these answers.
Step-by-step explanation:
The methods for removing California state court judges from office include:
Voting them out of office in periodic retention elections.
Through action by the Commission on Judicial Performance, which can discipline or remove judges.
The recall process, which is a citizen-initiated petition to hold an election to remove an elected official before their term ends.
Therefore, the correct answer to which method can remove California state court judges from office is 4) All of these answers.