Which of the following is NOT a common part of a funeral service?

The correct answer highlights an important distinction in the context of funeral services. Condolence calls refer to when individuals visit or call the bereaved to express their sympathy, which is more of a social custom rather than a formal part of a funeral service itself.

In contrast, the other options—viewing, cremation, and burial—are all integral components of funeral services. A viewing is a ceremony where friends and family can pay their respects to the deceased, usually held at the funeral home or another venue. Cremation is a method of disposing of remains, often followed by a memorial service or memorial gathering; it's recognized as a legitimate and increasingly common option for handling the body after death. Burial is another traditional method for final disposition of the body, involving interment in a cemetery.

Each of these elements plays a direct role in the ritual and structure of funeral services, whereas condolence calls, while vital for offering support to the grieving family, do not constitute a part of the formal service itself.