Haiku
A haiku is a short, three line poem with the first line with 5 syllables, the second with 7, the last with 5. It has not rhyme scheme and it usually is about nature. It can also have a kigo (a seasonal reference).
The kigo is this poem is the word snowy - it refers to winter. Also it is important to note that while the English version of the poem does not have the correct syllables, the poem was not originally written in English. It was written in Japanese. Sometimes the syllables get lost in translation.
The answer would be c - interjection.
Interjections are words or phrases that express emotion.
Examples would be wow, awesome, ummm, etc.
These are not appropriate for formal writing but used constantly in daily communication.
Ethos is a mode of persuasion used to convince the audience. It is one of three artistic proofs (ethos, pathos, and logos).
Ethos is also known as ethical appeal and convinces your audience of credibility and character. It is used to prove you are worth listening to. Ethos can be developed by choosing language that is appropriate for the audience and topic (this also means choosing the proper level of vocabulary), making yourself sound fair or unbiased, introducing your expertise, accomplishments or pedigree, and by using correct grammar and syntax.