As a proactive approach to solve a recent issue, the project team has been requested to determine all the possible causes of the issue. Which of the following tools would be the best remedy for the project team to take?

The question is asking for the project team to get to all the possible causes. There are a few potential answers, but based on the question and options provided, a cause-and-effect diagram is the best choice. This is the diagram that resembles a fishbone and shows how various factors can be connected to potential problems.