Bizarre pursuits are fun is the answer.
Iambic is a type of metric used in poetry, most popularly in Shakespeare. It is a word that contains an unstressed syllable followed by a stressed syllable. For this example 'bi' in bizzare is unstressed while 'zarre' is stressed. The rest of the phrase consistently follows this pattern, unlike the answer B: the word 'ballerinas' is iambic, however, per-formed contains two unstressed syllables. A trick usually used to identify iambic patterns is to match the rhythm of the word or phrase to a heartbeat.