In Colorado civil litigation, which of the following statements about service of process is true?
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A
Service of process can be completed by mailing the complaint and summons to the defendant.
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B
A defendant who lives out of state can be served by publication if they cannot be found in Colorado.
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C
Personal service on a corporation must be made to any employee of the corporation.
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D
The plaintiff must file proof of service with the court within 10 days of service.