Answer:
Brainstorming
Explanation:
The brainstorming talks about the provision of number of alternative solutions that will be useful for the decision making process and helps in choosing the best option as the number of alternatives will be assessed on a set criteria. So the strategy here is talking about the consideration of number of alternatives for the decision making which is the job of Joanna. Hence Joanna is using the Brainstorming approach for better decision making.