Finish the following sentence with the best choice: How to determine where a puncture is in a bicycle tire tube?

Choices:
- Remove the tube and tire from the bicycle and pump up the tube then submerge in water and listen for the sound of bubbles to isolate the puncture
- Remove the tube from the tire and pump up the tube then submerge lightly in water and look where the bubbles form to isolate the puncture

Answer:
Remove the tube from the tire and pump up the tube then submerge lightly in water and look where the bubbles form to isolate the puncture