One deliverable failed during testing, and this has already happened several times.
Which of the following tools is MOST appropriate for the project team to use to determine the cause of the problem?
A . Run chart
B . Fishbone diagram
C . Scatter diagram
D . Gantt chart
References: Kim Heldman, CompTIA Project+ Study Guide, 2nd Edition, Sybex, Indianapolis, 2017, p. 322