Concept:A monometer is the shortest metrical line in poetry, consisting of one metrical foot per line.
Explanation:Poetry meter is built from metrical feet, which are units of stressed and unstressed syllables.
A monometer contains exactly one metrical foot in a single line of verse.
The prefix "mono-" means "one," so monometer literally means "one measure."
For example, a one-word line such as "Freedom" can stand as a single foot by itself, making it a monometer.
Other metres, such as dimeter and pentameter, contain two and five feet per line respectively.
Among the options given, only option A correctly defines monometer as a line of verse consisting of one metrical foot.
The other options wrongly connect monometer to Milton's sonnets, Coleridge's "Christabel," or a repeated first syllable.
Answer:A. Line of verse consisting of a metrical foot.