In which file you should write the connection string, so you can access it in all the web page for same application?

In which file you should write the connection string, so you can acces

1.	In which file you should write the connection string, so you can access it in all the web page for same application?
A.	In App_Data folder.
B.	In Web.config file.
C.	In MasterPage file.
D.	None of the above.
Answer» C. In MasterPage file.