Final answer:
To find the change in elevation from the trailhead to the summit of Mount Whitney, subtract the trailhead's elevation from the summit's elevation and convert the result from meters to feet, which gives approximately 6,129 feet. Thus (option c) is right answer.
Step-by-step explanation:
The question is asking to find the change in elevation between the trailhead and the summit of Mount Whitney. To calculate this, you subtract the elevation at the trailhead (2,550 meters) from the elevation at the summit (4,418 meters).
This gives us a change in elevation of 1,868 meters.
To convert meters to feet, we can use the conversion factor where 1 foot equals 0.3048 meters. Dividing 1,868 meters by 0.3048 gives us approximately 6,129 feet.
Thus, the change in elevation, to the nearest foot, is 6,129 feet.
Thus (option c) is right answer.