People can face challenges like judgement and inequality when establishing a new colony/society/world.
The correct answer is free verse (choice C), in which you do not follow any particular rules about rhythm or rhyme. On the other hand, iambic, fixed, and syllable verses follow a certain rhythm, to make the poem look more uniform. Free verse is not restricted in such a way, and allows author to write as the wish.
(of a person or their judgment) not influenced by personal feelings or opinions in considering and representing facts
