12. Key Characteristics: a. Are lower level process features that should typically have SPC control charts in place in order to monitor their variation. b. Are features of a component design that, if made out-of-tolerance, can have a negative impact to the design function as they impact upper-level CTQ Features important to the Customer. c. Are considered minor features that have little or no impact on the Customer. d. Answers " A " and " B " only. e. None of the above. 13. The identification of Critical-to-Quality (CTQ) Features and Key Characteristics is conducted as which phase of APQP? a. Plan and Define b. Product Design \& Development c. Process Define \& Development d. Product \& Process Validation e. Production