Which sentence provides the correct definitions of culture, race, and ethnicity? a: culture is based on a common cultural heritage, race is a category based on people’s physical characteristics, and ethnicity is a set of beliefs and customs unique to a specific group of people. b: culture is a set of beliefs and customs unique to a specific group of people, race is a category based on people’s physical characteristics, and ethnicity is based on a group’s spiritual characteristics. c: culture is a set of beliefs and customs unique to a specific group of people, race is based on a common cultural heritage, and ethnicity is a category based on people’s physical characteristics. d: culture is a set of beliefs and customs unique to a specific group of people, race is a category based on people’s physical characteristics, and ethnicity is based on a common cultural heritage.