I believe the correct answer is Men must accept whatever the divine being has set for them and trust themselves.
The sentence that best describes the author’s central claim in this excerpt from Ralph Waldo Emerson's essay "Self-Reliance" is that men must accept whatever the divine being has set for them and thrust themselves as it is stated at the beginning of the excerpt: “Trust thyself: every heart vibrates to that iron string. Accept the place the divine providence has found for you, the society of your contemporaries, the connection of events.”