Answer:
3. is A
4. is D
Explanation:
If i am wrong i am sorry Y-Y
Oral communication is spoken orally (through the mouth), like by talking or singing. Written communication is transmitted through written words, such as stories, blogs, etc.
Oral communication came first. People spoke before they wrote!
The effects of the Great Chicago fire would be the most focused because it is an exact topic focused on and exact event. The others could all be narrowed down.
D: charts or diagrams that can help organize ideas and information
I hope this helps