In the grief process, it's possible for one or more of the stages to be absent, depending on the individual and their unique experience with grief. Among the options given, "bargaining" could be the stage that is absent, as not everyone goes through this stage. The stages of grief (such as those identified by Elisabeth Kübler-Ross: denial, anger, bargaining, depression, acceptance) may not occur for everyone in the same way or at all.
However, "death" is a factual event that occurs and cannot be absent from the grief process.