Final answer:
The boiling point of a cup of pure water is the same as the boiling point of five gallons of pure water.
Step-by-step explanation:
The boiling point of a cup of pure water is the same as the boiling point of five gallons of pure water.
Boiling point is a physical property of a substance and is determined by the temperature at which its vapor pressure equals the atmospheric pressure. Pure water boils at 100 degrees Celsius at sea level.
Therefore, the correct answer is A. Both boiling points will be the same.