Answer:
The elevation of the deepest point in the lake is the difference between the elevation of the lake's surface and its maximum depth.
Since the elevation of the lake's surface is 1273 feet above sea level, and its maximum depth is 3999 feet, the elevation of the deepest point in the lake is:
1273 feet - 3999 feet = -2726 feet
Therefore, the answer is C) -2726 feet below sea level.
Explanation: