Please help me I don't get it.

What is the elevation at point "X"?
A. 150 m
B. 50 m
C. 75 m

Also, please explain how your answer is the correct answer. Why is your answer correct?

Please help me I dont get it What is the elevation at point X A 150 m B 50 m C 75 m Also please explain how your answer is the correct answer Why is your answer class=