1. Anapest: An anapest is a three-syllable metrical pattern in which two unstressed syllables are followed by a stressed syllable. For example, the word “understand” is an anapest: Un-der-stand.

2. Trochee: A trochee consists of a stressed syllable followed by an unstressed syllable. For instance, the word “poet” is a trochee: Po-et.

3. Dactyl: A dactyl is a three-syllable metrical pattern where a stressed syllable is followed by two unstressed syllables. The word “poetry” itself is a dactyl: Po-e-try

4. Iambus (Iamb): An iamb (or iambus) is a metrical foot used in various types of poetry. In accentual-syllabic verse (like English poetry), it consists of an unstressed syllable followed by a stressed syllable. For example, the word “attempt” is a natural iamb: at-tempt.

All of the above consist of stressed and unstressed syllables but the only option that consists of stressed and unstressed syllables in that order is option B. Trochee