he project manager should consider option C, allowing the resources to periodically choose on which team they would like to work.
In agile, teams are self-organizing and are responsible for delivering the project objectives. Team members often have a say in the composition of the team, and allowing them to choose the team they work on can result in better team cohesion and performance. Furthermore, agile values individuals and interactions, so it is essential to consider the team members' preferences and satisfaction with their work environment.
However, the project manager should balance team member preferences with the project's needs and objectives. The project manager should ensure that the team members' choices align with the project's goals, and the teams are optimally composed to achieve the project objectives.
Options A and D do not align with the agile principles of self-organizing teams and are not recommended. Option B assumes that team members will always choose their favorite team, which may not be the case, and it does not consider the value of team member preferences and satisfaction.