If the signs \[\text{ }\!\!'\!\!\text{ }\!\!\div\!\!\text{ }\!\!'\!\!\text{ }\] and \[\text{ }\!\!'\!\!\text{ + }\!\!'\!\!\text{ }\] and the digits \[\text{ }\!\!'\!\!\text{ 9 }\!\!'\!\!\text{ }\] and \[\text{ }\!\!'\!\!\text{ 3 }\!\!'\!\!\text{ }\] are interchanged, then which one of the four equations would be correct?

• A. \[\text{3 + 9  }\!\!\div\!\!\text{  4 = 8}\]               
• B.  \[\text{3  }\!\!\div\!\!\text{  3 + 9 = 13}\]
• C. \[\text{3 + 9  }\!\!\div\!\!\text{  2 = 5}\]  
• D.         \[\text{3 + 9  }\!\!\div\!\!\text{  9 = 2}\]