The answer is A, because the ocean floor is -5 or below the sea level,so that makes the sea level=0, and the summit is 5km because if the whole thing is 10 km above the ocean floor, so 10+(-5)=5km.
I would go with the answer D
2/5
Step-by-step explanation:
4 ÷ 2 = 2
10 ÷ 2 = 5
Answer is 2/5
