Answer:
B). My father, who was my teacher for the day, picked me up.
Explanation:
Non-restrictive elements refer to words, phrases, or clauses that add extra information to a sentence but do not limit the meaning of the part they describe. These can be omitted without changing the overall meaning of the sentence.
In accordance with the prompt, sentence 2 can be reformulated to include a non-restrictive element, as shown in option B, with the phrase 'who was my teacher for the day' providing additional context to the noun 'my father' without affecting the core meaning (i.e., 'my father picked me up'). This exemplifies a 'non-restrictive' characteristic. Therefore, option B is the correct selection.
