The correct answer is A. You can receive instant feedback from your audience.
This is something that cannot be done if you are writing a text and your audience reads it at their home - they cannot immediately let you know what they think about your ideas and arguments. However, if you are giving a speech in front of an audience, then they absolutely can. B, C, and D are examples of what happens during writing, rather than speaking.
Answer:
god knows. why any sane person would choose to give birth to some snot groveling subhuman known as a child is beyond me.
It refers to the system by which people were physically labeled in concentration camps during the Holocaust.