1. If it's so easy, why didn't you answer it yourself?
2. The answer is C. Haiku. Haiku is a type of poem that consists of 17 syllables in intervals of 5:7:5. Meaning, there are 3 lines in Haiku and in the first line there are 5 syllables, in the second line there are 7, and in the third, there are 5 once again. (respectively)
