I need help quickly!

Answer:
Hi! your answer should be (C.) de
Explanation:
No es me chaquete. Es la chaqueta de Roberto- It's not my jacket, it's Roberto's jacket.
hope this helps!
Answer:
De, No es mi chaqueta. Es la chaqueta de Roberto
__________
Explanation:
(English) No it’s mine jacket. That jacket belongs to Roberto. In English ‘de’ would be written as ‘to’ for this sentence.