The correct answer is C. "Peter, Peter, pumpkin eater"
Step-by-step explanation:
In poetry, a trochaic tetrameter is a type of meter or structure of a verse in which each verse contains eight syllables and each pair of syllables is composed of a stressed syllable and one unstressed syllable that is called trochaic and in this way each verse has four (tetrameter) trochaic or four combinations of stressed/ unstressed syllables. Considering this, from the verses presented the only one that has this structure is option C as in this there are eight syllables or units of sound "Pe/ter/Pe/ter/pump/kin/eat/er" (slashes mark the division of syllables) and these create trochaics or stresses/unstressed syllable combination "Pe/ter/Pe/ter/pump/kin/eat/er" (bolded syllables are stressed ones).