Final answer:
To re-pair a phone to a uConnect system, you need to delete the old pairing and initiate a new pairing process.
Step-by-step explanation:
To re-pair a phone to a uConnect system, you should choose option c) Delete the old pairing and initiate a new pairing process. This can typically be done through the settings menu on the uConnect system or through the Bluetooth settings on your phone. By deleting the old pairing and initiating a new one, you can establish a fresh connection between your phone and the uConnect system.