My last answer was deleted for being pointless, but I had to add more letters for the correct, succinct answer to be published. The right answer is "a sentence".
Yes as long as you can tell your friend when you told them the idea .
The correct answer is tone. Imagery is using vivid description while style is the personal type of narration like what words they use or grammatical constructions. Theme is the underlying idea while the voice is seen through the tone, whether it's dark and broody or joyful or anything similar.
The man feels happy Bc his cheeses r selling good.