Question

which sentence illustrates the meaning of meter in poetry best? meter is an unaccented, accented pattern or rhythm. meter is a poetic line of 10 syllables without accents. meter is the regular pattern of rhythm in a poem. meter is the convention of a quatrain.

Explanation:

Meter in poetry refers to the regular pattern of rhythm. It is not limited to a specific number of syllables without accents (as in the second option) or just an unaccented - accented pattern (the first option is too simplistic as meter can have more complex rhythmic structures). A quatrain is a form (a four - line stanza) and has nothing to do with meter (fourth option).

Answer:

Meter is the regular pattern of rhythm in a poem.