the definition of perserverance is trying to achieve something even when there are challenges.
In the poem still I rise The author of the poem is trying to get away from the viewpoints of society and instead is trying to get her life in a better situation.
I would say that d is the least effective choice because it is broad, has little detail, and has no proof. Many people would say c, but unlike d, c has proof to what you are trying to say.