Final answer:
The sentence that uses a plural subject pronoun is 'Janine gave them the data report.'
Step-by-step explanation:
The sentence that uses a plural subject pronoun is Janine gave them the data report. In this sentence, the pronoun 'them' functions as a plural subject pronoun because it refers to more than one person or thing. 'Them' is the objective case form of the pronoun 'they', which is used to represent a plural subject.
Learn more about Subject Pronouns in English