You are assigned to be the project manager who will be responsible for developing the Company's latest product marketing plan, you are leading a six-member small team to work together. After sending a message to the team members about the project and the project meeting time, your next step is to report more details about project planning, but at the meeting, you find that some team members are skeptical about their roles and responsibilities in marketing activities. Which stage of team formation is the team in?你被指派为负责制定公司最新产品营销计划的项目经理，你带领一个六人小团队一起工作，在向团队成员发送了关于项目的信息和项目会议时间的邮件之后，你下一步就是通报更为详细的项目规划，但是在会议上，你发现一些团队成员对他们在营销活动中的角色和责任产生怀疑，该项目团队正处于团队形成的哪个阶段?