Final answer:
The best characterization of Mark is that he is arrogant and dismissive of others, as he devalues his coworker's ideas and exaggerates his abilities, which is counterproductive to team collaboration.
Step-by-step explanation:
The statement that best characterizes Mark, given his behavior towards his coworker's ideas and his self-promotion, is 3) He is arrogant and dismissive of others. Mark's tendency to belittle his colleagues' thoughts and overstate his abilities indicates that he lacks the qualities of a team player and isn't open-minded. It is crucial to recognize that while employers value initiative and the ability to work autonomously, the collaboration and individual contributions should serve the team's success. The 'free rider problem' described proposes that while a group collectively benefits from joint efforts, individuals might opt not to contribute, jeopardizing the group's overall progress and success. Mark's behavior hints at a lack of contribution to a collaborative goal, affecting not just the team's dynamic but also potentially its outcomes.