Write the next sentence in the following story.

How to replace the evaporator fan in a kenmore refrigerator model 106 8627580
Turn off the power to the appliance by unplugging the refrigerator from the wall.
Open the freezer door and take all the food out. Remove the freezer shelf.

Available choices: 1. Open the refrigerator door just enough to drop a one inch (2.5 cm) piece of paper insulation down the sink drain. Let the freezer sit for two to three hours, if using a digital scale, and then take the paper insulation down. 2. Press and hold the freezer handle down with your thumb and index finger. Keep in mind that the refrigerator shelf, itself, and the food attached to it are almost always connected to the power supply that protects the refrigerator from air. 3. Unplug the light fixture from the outlet. Remove any the drain plug and unplug the dryer adapter from the back of the fridge. 4. Remove the back panel of the freezer compartment. You may have to remove one of the freezer shelf supports on the side to get the panel out.. The answer should be
4.