Write the next sentence in this paragraph:

How to build a snow penguin
Check the snow condition.
It's important to make sure that you have the proper snow for snow sculpture. It needs to be firm but not too icy nor slushy.

Pick your answer from: (A). Make sure that the snow doesn't get wet before layering. The bottom snow layer should also be firmed up for air to flow through it. (B). If it's too dry, you will not be able to hang your penguin on the ice. Make sure to pay attention to the temperature. (C). You can chisel and scrape the snow to make it smooth and easier to work with. Take a bucket and fill it with water. (D). Test it by rolling into a small ball and seeing how the ball forms and stays together. If it forms easily and stays in shape, the snow is good to use.
(D).