Hello! My name is Zalgo and I am here to help you out on this lovely day. The main purpose of the introduction of an essay is to orient and create interest in the essay/paper you are currently making. You might have to establish a context for your essay by giving some background information on a topic of central/certain importance to the essay. The only answer that somewhat matches this is answer choice D;to focus on current statistics.
I hope this helps! :D
"Stay Brainly and stay proud!" - Zalgo
(By the way, can you mark me as Brainliest? I'd greatly appreciate it! Thank you! X3)