Answer:
The correct answer is: Weak Position power.
Step-by-step explanation:
The position power can be understood as the amount of influence that an individual has over a group. In other words, an individual with strong position power is able to administer either rewards or punishment to the members of a given group
Leaders, usually have strong position powers, specially when the people they are leading are from lower levels.
In this particular case, Erin who is a department manager is struggling trying to lead a cross-functional team because most members are other department managers at her level, and they see no reason to do what she asks. Here, Erin has Weak position power, because she is at the same level of the members of the group she is supoosed to lead.
In conclusion, the correct answer is: Weak Position power.