Two coworkers are having a dispute about how to achieve the goal of their company, which is to introduce the most competitive product in the smart phones industry. In the heat of the argument, one of the workers calls the other lazy and stupid. Why is this an example of a negative interpersonal conflict? a. Because such situations often happen in any group. b. Because only two of them were working, and they could not agree on how to achieve a strategic goal of the company. c. Because all conflicts are negative when working in groups. d. Because it was a personal insult not relevant to the task