Answer:
Sorry I don't get your question
Group member roles that reduce group success are ego tripper, negative artist, aggressor, jokester, avoider and that means all of these qualities can be detrimental for a group. The correct option among all the options that are given in the question is option "d" or the fourth option. These qualities can be the reason behind the failure of a team.
The answer is letter A. The Clear Air Act would be a reason for the Environmental Protection Agency or EPA to regulate car emissions. EPA sets the emission standards under the said rule or regulation and this also covers the green house gas emissions.