Select from options: Continue writing the next sentence.

How to look after pet crabs 
Fill the tank with about 1/2 to 1 whole centimeter (or more) of sand or coconut substrate. 
Place the crabs in the tank once you are home. 
Fill the two bowls with crab food and water.

Choices:
[A]. A spoonful of tank salt, a tablespoon of neem oil , 1/4 of a pinch of salt, and 2 drops of lavender oil together will work. Cover your crabs with a towel, or cover them with a lid.;
[B]. Do not use tap water; use non-chlorinated water. Leave them for a bit of time to get used to the area (choose a warm place and don't move them too much).;
[C]. Set up the sunbathing area in your aquarium and let your crab outsize its shell on the sand. Place the tank in a pot of water.;
[D]. You will use 3 or 4 gallons. Start by filling the first tank with crab food and placing the crab food and water into the opposite bowl.;
Answer:
[B].