The correct answer is B. Meter
Step-by-step explanation:
Nazim Hikmet was a Turkish poet, novelist, and playwright who lived during the 20th century and its mainly recognized for his achievement in poetry. During his life Nazim Hikmet wanted to use alternative poetry to the poets that follow the syllabic verse which refers to the use of a fixed number of syllables in each verse, this type of verse is related to the meter or fixed structure on how to write a verse in terms of syllables and whether these are stressed. Because of this, Nazim Hikmet began exploring other ways to write verses as he considered a fixed structure in writing limited his style, instead he began using free verse which is a type of poetry in which the meter and the rhyme are not fixed and therefore the poet can construct verses in a freeway. Thus, in the quest to discover a new kind of poetry Hikmet explored the use of meter through the free verse.