DMM contains information on what type of services?

The correct answer pertains to the Domestic Mail Manual (DMM), which is specifically concerned with various types of domestic mail services that the postal service provides within a country. This manual outlines regulations, standards, and guidelines that pertain to the mailing of letters, flats, and parcels across domestic destinations. It includes detailed information about pricing, product offerings, and delivery standards for mail that does not cross international borders.

In contrast, while international services, marketing services, and parcel delivery services may be important aspects of postal services, they fall outside the scope of what the DMM addresses directly. International services involve different regulations and manuals, marketing services are focused on promotional aspects, and parcel delivery services may include a variety of options that are detailed in other resources. The DMM is specifically designed to govern domestic mailing processes, making it the appropriate choice.