A stakeholder is known for becoming easily angered and being unreasonably difficult. To minimize this stakeholder's impact on the development team, which training should the project manager provide the team?

Emotional intelligence training is the most appropriate choice because it equips the team with skills to understand and manage their own emotions, as well as to perceive and influence the emotions of others. This is crucial when dealing with a stakeholder who is "easily angered and unreasonably difficult," as it helps the team respond constructively rather than react negatively. Communication training is too broad and might not specifically address emotional triggers. Negotiation training focuses on reaching agreements, which isn't the primary challenge here; the issue is managing the interaction itself. Agile training is a methodology and irrelevant to managing difficult stakeholder personalities.