A graph titled Average Amplitude of Waves from 2009 to 2011 with vertical axis Average Amplitude (meters) and horizontal axis Year. A line goes in straight segments from 2009 50 to 2010 175 to 2012 125.
A structural engineer is using this table to design a wall to protect a city near the ocean.
How high should the engineer build the wall?
50 meters
100 meters
150 meters
200 meters