Rosie manages a community pool. At the start of the season, the pool is empty and Rosie turns on pumps to fill the pool with water at a constant rate. Once the pool is filled, Rosie turns off the pumps and the pool water begins to slowly evaporate from the pool at a constant rate. After a while, Rosie turns the pumps back on and adds water to the pool until it is full again. As before, water begins to evaporate from the pool when it is full. Which graph best represents the volume of water in the pool with respect to time? the answer is option A ( study island )