Hola!! Your answer for this question is oficina de correos.
1.) If you translate the question you get:
I need to buy an envelope in a ____
post Office
Bank
Bakery
Museum
2.) From the options, the best answer will be the Post Office. You can buy an envelope there.
Answer: "Impresionismo" ~ Hope this helps (Sorry if im wrong)
Mi madre está cocinando (la) cena.
Source: My brain, I didn't use Google Translate.
