Question: To boil water in a saucepan,
Option 0: fill a saucepan with water, turn the stove on to high heat, and when the water bubbles up in large bubble rapidly to the surface, it has boiled.
Option 1: fill a saucepan with water, turn the stove on to high heat, and when the water bubbles up in tiny bubbles close to the pan's surface, it has boiled.
Answer: 0