That depends on what kind of essay we are talking about. If you are talking about a persuasive essay, then use different appeals and techniques, like ethos, logos,pathos, facts and figures, or testimonial. If we're talking about a narrative essay, then use plenty of imagery and sensory details, plus make sure to have plenty of characterization for your dynamic characters.
Soft tired tone because in the sentence you can get a vibe that he/she is tired.
I believe the answer is sentence 4