The clutch pressure plate is generally made of cast iron . It is round and about the same diameter as the clutch disc . One side of the pressure plate is machined smooth . This side will press the clutch disc facing against the flywheel . The outer side has shapes to facilitate attachment of spring and release mechanism . According to this paragraph, which statement is true? A. Many clutch pressure plate is made of cast iron B. The pressure plate is bigger than the clutch disc. C. Little clutch pressure plate is made of cast iron D. The pressure plate is smaller than the clutch disc.