Trochaic tetrameter (try saying that five times fast) is a line of a poem that usually contains about eight syllables that goes in the pattern stressed, unstressed, stressed, unstressed, etc. But, look at the syllable count for each of the answer options! Therefore, the answer is B. Peter, Peter, pumpkin eater.
Explanation: The subject is the who or what of the sentence. It's what the sentence is about. In this sentence, the places that are occupying the Iberian Peninsula are Spain and Portugal.
