The coordinate grid below shows the locations of Ada's house, Eve's house, and the community swimming pool. Ada cycled in a straight line from her house to Eve's house, and then together they cycled to the community swimming pool. What is the total distance (in units) that Ada cycled? A four-quadrant coordinate grid from negative 20 to positive 20 in increments of 4 is drawn. A point labeled Ada is plotted at the ordered pair negative 16, negative 12. A point labeled Eve is plotted at the ordered pair negative 16, 4. A plot labeled Pool is plotted at the ordered pair negative 4, 4.

12
16
20
28