I guess formal and informal refer to two types of essay - you can write a formal essay where you avoid conversational language and such and where you need to be very professional, or you can write informally where you don't have to think about such things, it is very casual.
Answer:
C. a noun that means "lengthy discussion"
Explanation:
The word discourse means written or spoken communication and one of the synonyms for discourse is "discussion".
Hope this helps :)
Answer:
I don't see a picture above.
Explanation: How do I answer the question? There is no picture above.
Answer: The speaker is counting basically her or his lost saints because he/she misses being freely and their passion
Explanation: