The correct answer is A. Blank Verse
Step-by-step explanation:
Blank verse is a type of verse in which verses do not follow rhyme principles, this means verses might not have repetition of similar verses, but usually follow metric which is the way a specific number of syllables are required in a verse and how that syllables are organized or combined if they are stressed syllables or not. In terms of metric blank verse usually follow an iambic pentameter, which means a verse is composed of five feet and each feet is composed by stressed and unstressed syllables. This type of metric is many poems of Robert Frost including the "Mending Wall", in which the poet does not care about rhyme but focuses on the number of syllables (10 in each verse) and the combination of stressed and unstressed syllables.