Answer:
cerrado means: <u>closed</u>
Use the verb “ser” when telling how a noun is (condition) and use “estar” to tell what a noun is (essential characteristics).
It would be c ¿Quieres ir a la fiesta conmigo?
I believe the answer you are looking for is Spain...
Hope this helps! :-)
Ser and Estar both mean TO BE.
However, 'ser' is used in permanent situations, e.g: Soy alta = I am tall. Which is quite permanent because I cannot change the fact that I am tall.
'Estar', however is temporary situations, like mood. e.g: Estoy cansado = I am tired.
Hope this helped!