My little brother loves climbing up trees
The last answer sets the most formal tone; "Hello! I was very pleased to meet you at the party last week." the rest are very casual.
The right answer for the question that is being asked and shown above is that: "extemporaneous." <span>You've been given a topic, and you've researched Lincoln's position on the matter. </span>Now it's up to you to show the audience your stuff. the method of delivery best fits your presentation is extemporaneous.
Correct answer is D. Humans often allow suffering to go unheeded or ignored.