The answer is A {+22,000 -2,000}
This is because sea level is counted as 0 on a topographical map and any distance below sea level is counted in -ft. So if you the problem is amount above sea level to amount below sea level then you have 22,000 above sea level which would be +22,000 ft. And two thousand below. Then you just put that in the brackets โ{}โ and you are done.
Hope this helps.