Answer:
D. Vigilant interaction theory
Step-by-step explanation:
It is correct to say that Alexa and David are employing the theory of vigilant interaction to increase productivity.
This theory is related to the team's decision-making process, that is, its objective is the integration and collaboration of the entire group with innovative and creative contributions that help in solving problems, helping in a more effective decision-making that contributes for the positive end result of the team.
Therefore, when using the strategy of increasing the sense of competition in the teams, managers seek the theory of vigilant interaction so that the final result and the goals of the teams are achieved.