Josie and her partner dana have been having relationship problems. josie often tries to control what dana thinks and does and frequently starts fights. josie’s behavior is an example of a(n): taking advantage of weakness being incompetent positively controlling the situation destructive conflict

I would say that Josie is taking advantage of weakness, except we have no information about Dana, so we don't know if she's weak.
He is incompetent, but this is also not the best way of phrasing it.

He is controlling the situation, but not in a positive way: so this is also a wrong answer.

I would say that it's definitely a destructive conflict: this is the correct answer.