Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to annotate a poem [title] Understand what is meant by iambic pentameter. [step] While contemporary poems don't always have a steady rhythm, most older poems do. One common rhyme scheme is iambic pentameter.

Ending1: This is the most common rhyme scheme used in the works of shakespeare, although many modern poets " collect " these examples. [substeps] In b-major covers rome and buda, st. Ending2: [substeps] " pentameter " refers to how many feet-i.e. groups of syllables-are in the line. Ending3: It can sometimes be used in a number of works as a substitute for simpler versions of iambic pentameter. [substeps] The purpose of this rhyme scheme is to protect the meaning of a word from breaking down into full coherence. Ending4: [substeps] Ectually, the length of the meter is shorter than for older poems. The meter can be used to explain everything between the lines, which is why poetry such as iambic pentameter relies on metric systems.

Answer format: ending1/ending2/ending3/ending4