That drop down bar are the options for all three of the questions being asked

When testing a polar equation for symmetry, there are three types of symmetry that you need to test for. When testing each of these types, you must substitute some values of the equation to see if you get an equivalent equation. Please match up each type of symmetry with the values you need to replace in the equation. For symmetry about the line, 0 = 2 v Choose... replace r with -r and 0 with -0 For symmetry about the polar axis, replace 0 with -0 replace r with -r For symmetry about the pole, Choose