Members of bob's group interact awkwardly. there are periods of silence, broken by ambiguous, tentative, and occasionally uncertain comments. the group is probably experiencing which stage?

Forming phase

Explanation:

The first stage of team development is forming phase. It is like the orientation of the first day about the new job. It can be compared as it is going out for the first date in the new job. At this, the team is introduced and everyone is overly polite with everyone on the first day. This is the time when everyone wants to be introduced and want to know other team members.  

During the stage there is something that a person can discuss:

answer; /// the only one of the above that makes good sense is ( the poor,plz check luck