Which listing shows regions arranged from highest to lowest elevation A. Rocky Mountains, intermountain, Appalachian mountains
B. Intermountain, Hawaiian islands, interior plains
C. Rocky Mountain, Appalachian Mountains, interior Plains
D. Interior plains, Hawaiian islands, Appalachian Mountains

For this problem i would go with C, Just by looking at the features you can tell

Explanation:

Intermountain and interior plains have the lowest elevation and would not be taller than the Appalachian or rocky mountains

the answer is: must pay taxes on profits

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the answer is a) high entry costs