To create a mesmerizing effect with the rhythms of meter and rhyme is the most likely reason a poet would choose to write in a traditional form.
Option A
Step-by-step explanation:
Rhythm is the variation between "stressed and unstressed syllables" and the way various poetic rhythms are merged is called the meter. In the traditional form, poetry is written in such a way that has systematic rhythms that lay down a pattern that helps to remember for recitation.
These rhythms are enjoyable and give pleasure to the reader because they reflect the natural "movements of human body". A poem is all about experience and evoking emotions and feelings, not just deciphering meaning.