Identify the Appropriate Control Chart for Measured Data

Identify the appropriate control chart for measured data.
-A paper products manufacturer coats paper with a thin film of wax. To initiate control
Charting, data are collected on the thickness of the coating (measured in mm) by taking
Twenty-five samples each of size five. The appropriate control chart for these data is the

A) c chart.
B) p chart.
C) Cp index.
D) x-bar and R chart.
E) ARL chart.