Answer: The correct answer is "whose members work intensely on a specific, common goal using their positive synergy, individual and mutual accountability, and complementary skills".
Explanation: The generic definition of work teams are groups whose members work intensely on a specific, common goal using their positive synergy, individual and mutual accountability, and complementary skills.
Groups from the same department or functional area that are involved in efforts to improve work activities or to solve specific problems are problem solving teams.
Groups without a manager and are responsible for a complete work process or segment are Self-managed teams.
And groups composed of individuals from various functional specialties are Cross-functional teams. And these are subtypes of working groups.