The purpose of HCPS codes set and its modifiers

Explanation:

The HCPCS codes range Modifiers for HCPCS codes hcpcs-modifiers is a standardized code set necessary for Medicare and other health insurance providers to provide healthcare claims.

HCPCS - MODIFIERS contains modifiers for Dressing for one wound, two wounds, three wounds, four wounds, five wounds, six wounds, seven wounds, eight wounds, nine or more wounds. Registered dietician, Specialty physician, Primary physician, Clinical psychologist, Principal physician of record.

b and c would be the answers