Answer :
The sentence that uses object pronouns is:
B. Juanita se los trae.
What are object pronouns?
- You use direct object pronouns (''pronombres de objeto directo'' in Spanish) when you want to replace a direct object, which is a noun, so you do not have to repeat the noun.
- You use indirect object pronouns (''pronombres de objeto indirecto'' in Spanish) when you want to say to whom or for whom something is done.
In this case, ''se los trae'' replaces ''trae los regalos a él''.
Check more information about object pronouns here https://brainly.com/question/24847334