Final answer:
The frequencies of 100 pps and 120 pps from the options provided are used with HVPC for wound healing, as they fall within the effective range of 80 to 125 pps.
Step-by-step explanation:
The frequency used with High-Voltage Pulsed Current (HVPC) for wound healing typically ranges from 80 to 125 pulses per second (pps). Specific frequencies within this range have been suggested to be effective, including 100 pps and 120 pps, as they are thought to optimize the application of HVPC for tissue repair and pain control in wound healing. Answer b. 100 pps and answer c. 120 pps are therefore considered appropriate frequency settings for HVPC in the context of wound healing treatments.