The correct answer is 'ABAB'. The rhyme scheme is the pattern of rhyme that comes at the end of each verse or line in poetry. In other words, it is the structure of the end words of a verse or line that a poet needs to create when writing a poem.

Rhyming Scheme in Free Verse Poetry

Rhyming Scheme:
A rhyming scheme is a pattern of rhymes at the end of each line of a poem. It is generally represented using a different letter for each rhyme. For example, if the first line of a poem ends with the word "cat" and the second line ends with the word "hat," the rhyming scheme would be represented as "AABB." Different rhyming schemes are used in different forms of poetry.

Free Verse Poetry:
Free verse poetry is a form of poetry that does not follow any specific rhyming scheme or metrical pattern. It is free from the constraints of traditional poetry and allows the poet to express their thoughts and emotions in a more creative and unrestricted way. Free verse poetry is characterized by its lack of rhyme and regular meter, and it often uses unconventional line breaks and spacing to create a unique rhythm.

Rhyming Scheme in Free Verse Poetry:
Since free verse poetry does not follow any specific rhyming scheme, there is no set pattern of rhyme at the end of each line. Instead, the poet is free to use rhyme as they see fit, or to not use it at all. Some free verse poetry may include occasional rhymes for emphasis or effect, while others may completely avoid rhyming altogether. In free verse poetry, the emphasis is on the poet's individual expression and style rather than conforming to a specific set of rules.