Final answer:
The correct direct and indirect object pronouns to complete the sentence 'La abuela cocina arroz para nosotros' are 'nos lo'.
Step-by-step explanation:
The sentence 'La abuela cocina arroz para nosotros' translates to 'The grandmother cooks rice for us.'
In this sentence, 'arroz' (rice) is the direct object, so the correct direct object pronoun is 'lo'. 'Para nosotros' (for us) is the indirect object, so the correct indirect object pronoun is 'nos'.
Therefore, the correct direct and indirect object pronouns to complete the sentence would be 'nos lo'.
Learn more about Direct and indirect object pronouns in Spanish