Which expression has a value of 3?

Responses

(12+6)÷(3+3)
open parenthesis 12 plus 6 close parenthesis divided by open parenthesis 3 plus 3 close parenthesis

12+(6÷3+3)
12 plus open parenthesis 6 divided by 3 plus 3 close parenthesis

12+6÷(3+3)
12 plus 6 divided by open parenthesis 3 plus 3 close parenthesis

(12+6)÷3+3