Answer :
Final answer:
To rewrite the sentence 'Estoy comprando los regalos para ellos' using object pronouns, select 'Se los estoy comprando' as the correct option.
Explanation:
To rewrite the sentence 'Estoy comprando los regalos para ellos' using object pronouns, the correct option is Se los estoy comprando. In this sentence, 'Se' represents 'them,' and 'los' refers to 'the gifts.' Therefore, the accurate translation is 'I am buying them the gifts.'