Select from options: Continue writing the next sentence.

How to unclog a kitchen sink 
Fill the sink partially full of hot water. 
Fill the sink until it is about 1/4 to 1/2 of the way full. 
Position the plunger over the drain.

Choices:
[a]. Using the plunger to roll the sink plunger down slowly while holding the bowl or bucket on its edge, slowly push down on the plunger for 2 to 4 seconds. This should dislodge the water below the water line.;
[b]. Turn the plunger counterclockwise until the remaining water has drained out. Then pull the plunger back in, while keeping the plunger turned to avoid splashing the water.;
[c]. Place the plunger over the opening between where the drain lid and the stem plug are located. Only do this if the container you're using is very hot.;
[d]. If you have a double sink, then stuff a washcloth into the unclogged drain to ensure that the plunger's pressure is focused on the clog. Work the plunger up and down quickly.;
Answer:
[d].