A.Less than 6,000 feet above sea level.B.Less than 1,800 feet above sea level.C.More than 6,000 feet above sea level.D.More than 1,800 feet above sea level.
A.Less than 6,000 feet above sea level.
B.Less than 1,800 feet above sea level.
C.More than 6,000 feet above sea level.
D.More than 1,800 feet above sea level.