I had a stick in my hand so I kept jabbing it to make sure that where I stepped was safe . As I went farther out onto it , my heart raced more , but I could feel the ice bobbing up and down under me and it was a nice weird kinda feeling . The ocean was calm yesterday so I was pretty safe that it would not all of a sudden start to drift again .
According to the above context, choose the best option to answer the following question.
Question: Why did I use the stick ?
Options:
A. To stop the ice from drifting .
B. None of the above choices .
C. To calm the ocean .
D. To ensure my next step was safe .


D