The line that uses all the iambs is - If the grass is green today. Therefore option D is the correct response.
What are Iambs?
Different genres of poetry employ the metrical foot known as the iamb or iambus. The phrase's original meaning was "a short syllable followed by a lengthy syllable," which is one of the feet of the quantitative meter of classical Greek prosody.
6 varieties of iambic meters A line of poetry written in iambic dimeter has two iambs. A line of poetry written in iambic trimeter has three iambs. A line of poetry written in iambic tetrameter has four iambs. Five iambs make up an iambic pentameter line of poetry. A line of poetry written in iambic hexameter has six iambs.
Any iambic meter's consistent sequence of unstressed and stressed syllables aids in establishing a feeling of rhythm and structure. Iambic meters have been employed by poets for millennia to distinguish their literary works from everyday speech without pushing language into artificial structures.