Answer:
to vacuum the house, dusting the shelves, clean and scrub
Explanation:
Parallelism refers to the repetition of a chosen grammatical form within a sentence; it uses words, phrases or clauses that are grammatically similar or identical in structure, sound, or meter to show that the ideas are equally important and to give a natural flow of reading to the piece of writing.
Unlike the other options, “To vacuum the house, dusting the shelves, clean and scrub” does not show parallelism because its phrases do not have the same, or a similar, grammatical form: the verb <em>to vacuum</em> is in the infinitive, <em>dusting</em> is in present participle and <em>clean </em>and<em> scrub</em> are in their base forms. If we wanted to write these phrases using parallelism, we would have to choose one verb form and repeat it.
