When onsite repairing a printer the technicians cell phone rings and it is a personal call， how should the technician handle this？（）

• A、Answer the call and talk to your friend at the customer site.
• B、Answer the call and tell the friend you will call them later.
• C、Let it go to voicemail， call them back between service calls.
• D、Let it ring and call the friend back when the customer leaves.