Correct Answer: less than that at sea level

Solution : The correct option is less than that at sea level.

The boiling point of water is lower at higher altitudes than it is at sea level. This is because atmospheric pressure drops with altitude, and the boiling point of a liquid is directly connected to atmospheric pressure. Because air pressure is lower at higher elevations, water takes less thermal energy to reach its boiling point. As a result, water boils at a lower temperature than is typically recorded at sea level.