Final answer:
Race describes physical differences that have taken on social significance while ethnicity refers to differences related to national origin or distinctive cultural patterns.
Step-by-step explanation:
Option b: Race describes physical differences that have taken on social significance while ethnicity refers to differences related to national origin or distinctive cultural patterns.
Race is a social construct that focuses on physical differences that are given social significance. For example, society may consider certain physical traits, such as skin color, to be associated with a particular race. Ethnicity, on the other hand, is based on shared culture, including practices, norms, values, language, religion, and traditions.
Therefore, option b best captures the difference between the concepts of race and ethnicity.