What is a mausoleum?

A mausoleum is defined as a building specifically designed to house the dead, and it typically features above-ground burial spaces. These structures can vary in size and design, often serving not just as a place for interment but also as a memorial site where families can visit and pay their respects. The architecture of mausoleums can be quite elaborate, symbolizing the dignity and remembrance of those who have passed.

In contrast, the other options describe different concepts related to memorialization and burial practices. A memorial for veterans refers to structures or sites that honor the service of military personnel, which is distinct from the function of a mausoleum. An area designated for placing flowers represents a specific act of remembrance, and while it may be part of a mausoleum complex, it is not the definition of one. Lastly, a garden where ashes are scattered pertains to a method of handling cremated remains, which is separate from the above-ground entombment that a mausoleum provides. Thus, option B accurately captures the essence of what a mausoleum is.