In Access press CTRL+N to

Answer: Option A

In Microsoft Access, pressing CTRL+N is used to open a new database. This keyboard shortcut creates a new, blank database, allowing you to start working on a fresh project. It's important to differentiate this from opening an existing database, which would typically involve using a different keyboard shortcut or menu option.
Option B: CTRL+N is not used to open an existing database. It's used to create a new database as explained above.
Option C: CTRL+N does not exit Microsoft Office Access 2007. The correct keyboard shortcut to exit an application is ALT+F4.
Option D: CTRL+N is indeed used to open a new database in Microsoft Access, so this option is accurate.

Therefore, the correct option is Option A: Open a new database.