Answer: Norming stage
Step-by-step explanation: Norming stage refers to the stage at which the previous interactions of the group starts resulting in a feeling of team work among the members.
In this stage the members accepts the fact that they are a team and they should work together to accomplish the goals. The members of a group in this stage stops focusing on their individual goals and starts working for the ultimate objectives.
Hence from the above we can conclude that the correct option is A.