Answer:
a
Explanation:
b can't work because there are no animal related things in there c is not correct because it is not only water and d cannot work because only one part are the gates
*You control your own destiny.*
Two lines of the poem directly support this claim. They are...
"I am the master of my fate:
I am the captain of my soul."
Meaning that the ultimate determining factor is you. Everyone is granted a choice, fate and destiny do not control you, because everyone has free-will.