The poetic form of “your laughter” is known as blank verse free verse pentameter sonnet

I think the correct answer from the choices listed above is the second option. The poetic form of “your laughter” is known as a free verse. The use of free verse is conducive to the lyrical quality of his love poems. Hope this answers the question. Have a nice day.  

A author might hint at what will happen later on in the story.