Does hill A, B, or C have the highest elevation? B
-300
OCEAN
-200
-100
А
RIVER

-100

Explanation:

try looking at the numbers like their at a number line, so the farthest right number or the number closest to 0 will have the highest elevation/be bigger.

if they were asking for the hill with the lowest elevation, you would have to go with the lowest number, aka -300