You are managing tooling for an aircraft part．Your team members tell you that they found a few defective parts．When you asked them the reasons for the defect，they mentioned that it could because of several reasons including the material used，the measurement system，inaccurate tolerances in the machine or other factors．To help them to illustrate better how various factors might have contributed to the defect，you will （）．
A．use a control chart
B．create a flowchart
C．draw a fishbone diagram
D．draw a Pareto chart