<span>When an activist decides to use a song, speech, or video to communicate his message, he is using strategic support to reach his audience. An activist is someone who passionately believes in a cause.</span>
I think the best choice would be C.
*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.