A lnetwork administrator has implemented security protocols to protect the transmission of sensitive information specific to employees, such as their home addresses and phone numbers. This information is strictly for internal use within the organization and is not intended to be accessible by the general public or outside entities. Considering the nature of this information, which is focused on individual privacy and is safeguarded against unauthorized access, what is the MOST appropriate classification for this type of data?

A$.$Confidential

B$.$Regulated

C$.$Public

D$.$Private