B. It has five metrical feet that each contain an unstressed syllable immediately followed by a stressed one.
Explanation:
<em>Iambic pentameter</em> is a type of verse structure that gives the line a certain rhythm. The iamb is a type of metrical feet that is considered to be built of one unstressed syllable and one stressed syllable. But in its name, we have pentameter, and <em>Penta </em>means five in Greek. So, we have five pairs of unstressed and stressed syllables, or in other words 10 syllables. Shakespeare loved using the iambic pentameter because of its effect on poetry and how it made it sound.
