What is the most logical next event?

How to keep an rv water hose from freezing
Fill your fresh water holding tank with water, about 3/4 of the way full.
Having fresh water in your tank ensures you will have ample fresh water supplies after disconnecting your water hose, but by only filling 3/4 of the way, you leave room in the tank for expansion.
Disconnect your rv water hose.

Select from: A). Before switching off your water hose, turn it off. Make sure to turn off your device's power supply.; B). Detach it from the rv connection and water supply line. Place it in a covered area away from cold.; C). Using your bucket, fill it with fresh water. Place the bucket and water tank over the hose.; D). The nozzle attached to the water line connects your rv water tank to water supply. Disconnect the hose to allow the water to flow freely into the tank.;
B).